You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Yes, how can i help you?

USER: I am planning for holiday vacation from TX-HOU to GA-ATL.Can you please help me in booking the flight ticket?

ASSISTANT: Sure, may I know your travelling dates?

USER: The travelling dates are from 05/15 to 05/17.

ASSISTANT: Ok, please let me check it out.

USER: Ok.

ASSISTANT: Sorry to say, no flights found on your details.

USER: Thank you for your information.

ASSISTANT: Ok, may I know your name please for the documentation purpose?

USER: Sure, my name is Betty Collins.

ASSISTANT: Ok, thank you for choosing us.

USER: You are welcome.