You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I am David Edwards. I would like to visit Lyndon Baines Johnson Library and Museum at Austin, AUS. Can you please help me in booking a ticket?

ASSISTANT: Sure, we are here to help you. Can you please forward your journey dates that you prefer to travel?

USER: My journey dates are from 06/07 to 06/09.

ASSISTANT: May I know your boarding point please?

USER: My boarding point is Philadelphia, PA-PHL.

ASSISTANT: How much you can spend for airfare?

USER: I can afford only 200.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: We found a Frontier airlines with connecting flight and the fare of 100. Shall I proceed with the booking?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been reserved with 1020 flight number.

USER: Thank you.

ASSISTANT: Thank you for choosing us.