You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you at this moment?

USER: I want to visit Comcast Center with my friend, I would like to book a ticket from DEN.

ASSISTANT: Sure, can I know your destination airport code?

USER: Sure, my destination airport code is PHL.

ASSISTANT: When you are willing to depart from DEN and return from PHL?

USER: I would like to travel on 11/14 and my return date is on 11/16.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: There is a flight available with AA airlines, shall I book it?

USER: May I know the connection limit?

ASSISTANT: Its connection limit is 1.

USER: Ok, please confirm my booking with AA airline.

ASSISTANT: May I know on which name you want to book the ticket?

USER: Myself Jessica Harris.

ASSISTANT: Your ticket is confirmed, flight number is 1004, happy journey.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.