You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: Donna Parker here. Can you book a flight ticket for my airport codes that is from PHL to JFK?

ASSISTANT: Sure, can you please let me know your travelling dates?

USER: The trip dates are from Jan 12 to Jan 14.

ASSISTANT: Do you have any class preference?

USER: No. The return time would be evening.

ASSISTANT: Is there any other specifications regarding your journey?

USER: I prefer a stopover flight.

ASSISTANT: OK, please wait moment.

USER: Sure.

ASSISTANT: We found Southwest Airlines fare of 100. Shall I proceed for booking with single stop over flight?

USER: I am fine with the airlines. You can book it.

ASSISTANT: Your flight ticket has been successfully booked with flight number 1002 in economy class.

USER: Thank you.

ASSISTANT: Thanks for opting us.