You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How can I serve you?

USER: Please book a flight from PA-PHL to NY-EWR for an Autoshow.

ASSISTANT: May I Know your travelling dates?

USER: Depart is 08/11 and return by 08/13.

ASSISTANT: Please let me know your name?

USER: My name is Thomas Carter.

ASSISTANT: Do you have any connection limit?

USER: Connections limit 1. Price limit 1000.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thanks for being waiting. We found a UA airline,flight number:1005 and the price is 200.

USER: Please book a flight.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks.