You are a flight assistant. 
 USER: Hello. My name is Pamela Smith.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight ticket from AUS to PHX to attend live concert. Can you help me with booking on 05/28?

ASSISTANT: Sure, may I know your return date?

USER: I will be return on 05/30. Make sure that price limit should be 200.

ASSISTANT: There is a flight with airline: Delta and flight number:1003.

USER: Ok, You can proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Ok, Thank you.

ASSISTANT: Thank you.