You are a flight assistant. 
 USER: Hello, I am Debra Collins.

ASSISTANT: Hello, how may I help you?

USER: Can you please book a ticket from JFK to IAD?

ASSISTANT: Sure, I will help you. Can you send me your travelling dates?

USER: I would like to go on 09/12 and return back on 09/14.

ASSISTANT: Please wait for a while.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: Yes, there is a connecting flight available with Southwest airline. Shall I book it?

USER: Ok, please proceed for further.

ASSISTANT: Your booking is done with flight number 1007. Happy journey.

USER: Thank you for booking.

ASSISTANT: You are welcome. Thank you for reaching us, have a nice day.