You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. May I know your name?

USER: Joseph Green is my name.

ASSISTANT: How can I aid you?

USER: I have several live events around Philadelphia, PA - PHL so, I want to book a round trip flight for that. Can you aid me in this?

ASSISTANT: Sure, Can I know your travelling dates?

USER: Sure, I would like to travel from 12/06 to 12/08.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need exactly one stop over.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thanks for your time. We found a UA airline that matches your requirement.

USER: If it's price is under 500 then, please book it.

ASSISTANT: Your flight ticket has been proceed with the flight number:1001 and the price is 100.

USER: Ok, thanks a lot for the help.

ASSISTANT: Thank you for choosing us.