You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Robert Baker here.

ASSISTANT: Baker, how may I aid you?

USER: I want to attend a Marriage in Seattle. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, please provide your airport codes.

USER: My airport codes are from HOU to SEA.

ASSISTANT: May I know your travel dates?

USER: My travelling dates are from 12/25 to 12/27.

ASSISTANT: Please hold on for a while.

USER: Ok, I will wait.

ASSISTANT: AA airlines with flight 1029 is available on your route.

USER: Make sure my price limit is 200.

ASSISTANT: Ticket fare is 100.

USER: Please proceed for booking the flight ticket.

ASSISTANT: Your ticket is confirmed.

USER: Thanks for helping me.

ASSISTANT: Thank you for choosing us.