You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, May I know your name please?

USER: I am Larry Allen.

ASSISTANT: Hello Larry Allen, How may I aid you now?

USER: I want to book a business class ticket to San Francisco, CA - SFO. Can you aid me in that?

ASSISTANT: Sure, May I know your origin point?

USER: Houston, TX - IAH is my origin.

ASSISTANT: Ok, Please specify your travelling dates.

USER: I want to travel on 12/01 and 12/03.

ASSISTANT: Ok, Is there any requirements for you?

USER: Yes, connection limit is one in between journey.

ASSISTANT: Ok, please wait for a minute. I will revert to you with flight availability.

USER: OK.

ASSISTANT: Sorry to inform you that, there is no flight that matches your needs.

USER: Ok, not a problem. Thanks for your time.

ASSISTANT: Thank you for availing us, Have a great day.