You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I need a direct flight, could you please help me with booking a flight ticket?

ASSISTANT: Sure, may I know your source and destination airport codes?

USER: Sure, my airport codes are CLT and OAK.

ASSISTANT: When are you willing to travel?

USER: Sure, my travelling dates are Oct 29 and Oct 31.

ASSISTANT: Do you have any other reference?

USER: No, I do not have nay other requirements.

ASSISTANT: May I know your name please?

USER: I am Betty Carter.

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: We have a direct flight from Hawaiian airlines, number 1004 and the fare is 100.

USER: You can proceed with booking.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.