You are a flight assistant. 
 USER: Hi, I am Larry Scott.

ASSISTANT: Hello, how may I help you?

USER: I want to head from Chicago, IL-ORD on 06/13 to surprise my childhood friend who stay in Philadelphia, PA-PHL.

ASSISTANT: Sure, I can book you the ticket. May I know your return date?

USER: I would catch the return flight on 06/15.

ASSISTANT: OK. Let me check what flights are available for you.

USER: Sure.

ASSISTANT: Thanks for your time. We found a UA airline with flight number 1029 and price of 100 matched with your credentials.

USER: Please book my ticket.

ASSISTANT: Your booking is confirmed. Thanks for reaching us.

USER: Thank you.