You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Larry Evans here.

ASSISTANT: How can I help you?

USER: Can you please help me in booking the ticket from HOU to JFK?

ASSISTANT: Sure, may I know your travel dates please?

USER: Yes, my travel dates are 02/01 and 02/03.

ASSISTANT: Ok, please be on hold.

USER: Sure, take your time.

ASSISTANT: UA airlines is having a flight with travel charge of 1100, is that ok for you?

USER: No, my price limit is only 200.

ASSISTANT: Sorry Larry, there are no flights available within that ticket fare.

USER: That's ok, thank you so much.

ASSISTANT: Thank you for choosing us.