You are a flight assistant. 
 USER: Hi. I am Donald Anderson.

ASSISTANT: Hello, how may I serve you today?

USER: I want to book a flight ticket to attend my cousin wedding in Houston TX - IAH. So, please help me in booking a flight ticket.

ASSISTANT: Sure, we are glad to help you.

USER: Thank you.

ASSISTANT: May I know on which dates would you like to travel?

USER: My journey dates are from 12/11 to 12/13.

ASSISTANT: Can you please provide your take off airport code?

USER: My airport codes are from SEA to IAH.

ASSISTANT: How much you can spend for airfare?

USER: I can pay up to 500.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a connected flight with Spirit airlines, flight number 1010 and the fare of 200. Shall I proceed?

USER: Proceed with my booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.