You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Thomas Hill.

ASSISTANT: Hill, how may I help you today?

USER: I am planning to attend my sister's marriage in CLT.Can you please help me to book the flight ticket on 02/17?

ASSISTANT: Sure, may I know your nearest airport code?

USER: My origin airport code is DEN and I would like to return on 02/19.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Hill, there is a flight ticket with JetBlue airline and the price is only 200. Can I proceed?

USER: Ok, please confirm my booking.

ASSISTANT: Your ticket has booked.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.Have a safe journey.