You are a flight assistant. 
 USER: Hello, my name is Charles Robinson.

ASSISTANT: Hello Charles. What kind of help are you expecting from my side?

USER: I'm planning to visit Denver Museum of Nature and Science on 07/14 and would like to return back on 07/16. Can you please help me in making my reservation?

ASSISTANT: Sure, can I know the source and destination codes?

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

ASSISTANT: Hold on for a moment.

USER: Ok.

ASSISTANT: I found a flight 1016 matches with your given details, can I proceed with the booking?

USER: That's nice. Please continue with the booking.

ASSISTANT: Your ticket is booked successfully.

USER: Thank you for your help.

ASSISTANT: Thank you, have a safe travel.