You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Can you help me to book a flight from JFK on 12/19?

ASSISTANT: Sure, we are perky to serve you. Can I have your return journey date?

USER: My return journey date is 12/21.

ASSISTANT: Where you need to land on 12/19?

USER: I would like to visit Washington, so please book a flight to IAD.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: Do you need any lay by in your journey?

USER: I need a connecting flight.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: There is a connecting flight with fare of 200 and 1009 flight number. Shall I proceed?

USER: Proceed with booking.

ASSISTANT: It will be helpful for me, if you share me your good name?

USER: My name is Nicole Lewis.

ASSISTANT: Your seat has been reserved with American Airline in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.