You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: Could you help in booking a ticket?

ASSISTANT: Sure.

USER: I have a singing competition in Charlotte. My location codes are from SEA to CLT, and my travelling dates from 07/16 till 07/18.

ASSISTANT: Wait a while please. May I know your name?

USER: My name is Margaret Miller.

ASSISTANT: There is flight-1018 with American Airline, shall I proceed for booking, Miller?

USER: Ok, proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thanks for reaching us. Have a happy journey.