Business Visa - B1

I had attended the interview on 10th April & 24th April for B1 visa and both were rejected with 214 b.

Here is the full narrative of both the interview. Kindly help me by telling me what reason my Visa was denied.

On 10th April :-

VO: Good Morning
Me: Good Morning

VO: Your passport pls.
Me: Sure ( and I handed over the passport to her)

VO: So your last passport was lost. Did you had US Visa on it.
ME : No I didnt had US Visa on it.

VO: Why you want to go to the US
ME: I am going to attend a conference (gave name of the conference ) held in Chicago

VO: Do you have an invitation letter from them?
ME: Yes I do and handed over the letter.

VO: Why your organisation has selected you to attend the conference?
ME: As I have been promoted as a Sr. Sales Manager last year and now my organisation wants me to explore other regions for business prospect and this is a Annual meeting which will help me and my organisation in developing business.

VO: How much is your annual salary?
ME : 2LAC 40 Thousand.

VO: How long have you been working with the employer?
ME: Its 3 and a half years.

VO: Have you traveled outside India before for such conference>
ME : NO this is will be my 1st business trip.

VO: Sorry I cannot issue you a Visa and gave me a 214b rejection letter.

I again applied after a week as my employer wanted me to attend the conference.

24th April :

VO: Good Morning
ME: Good Morning

VO: Can I have your passport?
ME : Sure(Handed over the passport)

VO: What type of Visa are you applying today>
ME: B1

VO: Why you want to go to the US?
ME : I am going to attend Annual meeting for global wholesale telecommunication held in Chicago.

VO: Name of the conference>
ME : Gave the name of the conference.

VO: Why do you think your last application was rejected?
ME: To be honest I dont know the exact reason for the denial.

VO: How many days will you stay in the US?
ME: 7 days .

VO: Do you have got all your bookings done?
ME: Yes I have .

VO: Is you company hosting the conference?
ME NO, we are only attending the conference.

VO: What is your designation ?
ME: I am working as a Sr Carrier Relation Manager for Sales.

VO: How you think that this conference will help you?
ME: As i mentioned this is annual meeting of the entire telecom community and it gives us an opportunity to discuss possible business case in order to develop our business. Also it gives us an advantage of showcasing our products and services in front of the entire globe.

VO: Are you married:
ME : Yes.

VO: I am sorry but i cannot approve your Visa. You can surely reapply again if you think your situation has changed.
ME: if its possible can I know the reason as I have been rejected twice and my employer wants me to attend the conference.

VO: I am sorry but I cannot coach you regarding this.

Then she gave me the passport along with the 214b letter.

This is quite disheartening as I am married and have a one year old kid. I have been working with the company for 3and half years, Have been promoted and my job is stable. The entire expenses was taken care by my employer even then the VISA was rejected twice without giving any proper reason.

Can someone help me in guding what went wrong and what can be the possible reason of decline twice in the same 214 (b).

Regards
Prakash