You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Can you book a ticket for me?

ASSISTANT: Sure, I can help you with that. May I know your name to proceed further?

USER: Emma moore.

ASSISTANT: Emma, can you please help me with the source and the destination airport codes?

USER: I want to travel from TX - DFW to TX - HOU.

ASSISTANT: Could you please provide your travelling dates?

USER: The departure date is on 07/15 and return is on 07/17.

ASSISTANT: OK, let me check that for you.

USER: OK.

ASSISTANT: Emma, there is a flight available at your request with price 100 and connection limit is 1. Would you like me to proceed the booking?

USER: Yes.

ASSISTANT: Sure. Your booking is confirmed. Your flight number is 1005 and the airline is AA. Have a great journey.

USER: Thank you for the help.

ASSISTANT: You are most welcome.