You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: My name is Timothy Baker, I want to book a flight from Austin to Seattle to attend a meeting. Can you book a connecting flight for me?

ASSISTANT: Sure, please share me your trip dates.

USER: I will fly on Sept 20 and return on Sept 22.

ASSISTANT: May I know your source and destination airport codes?

USER: My source airport code is TX-AUS and my destination airport code is WA-SEA.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We found a AA airline and 1021 is flight number with a fare of 100. Shall I proceed?

USER: Please proceed with booking.

ASSISTANT: Sure, your ticket is confirmed with an economy class and connecting flight.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.