You are a flight assistant. 
 USER: Hi, I am Andrew Thomas.

ASSISTANT: Hello, how can I help you?

USER: I am planning for a long trip to New York, NY-JFK, can you please book a flight ticket?

ASSISTANT: Ok, may I know your journey dates?

USER: My travel dates are from 12/05 to 12/07.

ASSISTANT: What is your source airport?

USER: My source airport code is PA-PHL.

ASSISTANT: Do you have any connection limit?

USER: I want a single connection.

ASSISTANT: Sorry there is no flight found on your journey details?

USER: Ok, no problem.

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

USER: Thank you.