You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Mark Smith want to attend a workshop at Seattle, can you book a ticket within the fare of 200?

ASSISTANT: Sure, may I know your airport codes please?

USER: Yes, I want to travel from 02/09 and 02/11.

ASSISTANT: Ok, now may I know your travel dates please? Ok, please wait for a moment. May I know your airport codes please?

USER: I want to travel from AUS to SEA.

ASSISTANT: Ok. Thanks for waiting. I have found UA airlines which flies with one connection.

USER: That's perfect! Proceed with my booking.

ASSISTANT: Sure, your flight ticket has been confirmed with flight number 1000.

USER: Thank you.

ASSISTANT: Thanks for reaching to us.