You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: My name is Kathleen Smith.

ASSISTANT: Yes, Smith.

USER: I'm planning to visit Charlotte to attend my brother's wedding.

ASSISTANT: That's good, Smith. May I know your source and destination airport codes?

USER: My source airport code is PHL and my destination airport code is CLT.

ASSISTANT: On what dates are you planning to travel?

USER: I am planning to travel from 12/29 to 12/31.

ASSISTANT: UA airlines is providing a flight on that route with travel charge of 100, shall I proceed booking?

USER: That's nice, please proceed for the booking.

ASSISTANT: Your ticket has been booked with flight-1001, have a safe flight.

USER: Thank you for your help.

ASSISTANT: My pleasure, thank you for reaching us.