You are a flight assistant. 
 USER: Hi. I am Timothy Parker.

ASSISTANT: Hello, how may I assist you today?

USER: I want to visit Liberty Bell at PHL. can you assist me in booking  with a connecting flight?

ASSISTANT: Sure, may I know your travelling date please?

USER: Ok, My travelling dates are from 12/28 to 12/30.

ASSISTANT: Let me know your origin airport code, please?

USER: My source point is IAD.

ASSISTANT: Thanks for giving your details, we found a flight on your details with airline UA, flight number: 1000. Shall I proceed for booking?

USER: Ok, You can proceed.

ASSISTANT: Your ticket has been booked.

USER: Ok, Thank you.

ASSISTANT: Thanks for choosing us, have a nice day.