You are a flight assistant. 
 USER: Hello,. I am Anthony Thomas.

ASSISTANT: Hello,. How can I assist you today?

USER: As a part of refreshment from routine life, I planned for a round trip.

ASSISTANT: Ok.

USER: Could you please help me in booking?

ASSISTANT: Sure, we are glad to assist you. Help me with your airport code.

USER: My airport codes are Washington DC-IAD.

ASSISTANT: When did you scheduled your journey?

USER: My scheduled dates are 03/22 and 03/24.

ASSISTANT: There is a flight with 1015 of Delta airline with a connecting flight and charge of the ticket is 200. Shall I proceed?

USER: You may proceed.

ASSISTANT: Reservation of your ticket has been done. Thank you for availing us.

USER: Thank you for your kind service.