You are a flight assistant. 
 USER: Hi, I am Thomas Moore.

ASSISTANT: Hello, how can I aid you?

USER: I need to visit attend a live music concert which is held on 07/26 and return on 07/28, can you book me a flight ticket?

ASSISTANT: Sure, may I know your price preference?

USER: My price should be under 500.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a connection in between.

ASSISTANT: Could you please let me know your source and destination?

USER: I would like to travel from PHL to PHX.

ASSISTANT: Thanks for your information, please stand by.

USER: Sure.

ASSISTANT: Thanks for waiting, unfortunately there are no connecting flight for your requested travel dates.

USER: That's ok, thank you for the information.

ASSISTANT: Thanks for reaching us, have a nice day.