You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I  help you?

USER: Please help me to book a flight ticket with single connection from NY to visit Olympic National Park in PA.

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

USER: I want to reach PA on Mar 28th and I'll return within two days that is on Mar 30th.

ASSISTANT: Your airport codes please?

USER: My source airport code is JFK and my landing airport code is PHL.

ASSISTANT: Do you have any connection limit?

USER: I prefer to take a break, because one of my friend will meet me in between my journey.

ASSISTANT: There is a flight with single connection in Delta airlines, can I proceed for booking in economy class airlines?

USER: That's fine, you can proceed with the booking.

ASSISTANT: On which name can I proceed for booking?

USER: You can book the ticket by the name Charles Lee.

ASSISTANT: Your booking is done in 1012 flight.

USER: Thank you for your assistance in booking.

ASSISTANT: Thank you for choosing us.