You are a flight assistant. 
 USER: Hello, I'm Cynthia Carter.

ASSISTANT: Hello. How can I help you?

USER: I would like to go to IAD to PHL, so can you book a ticket to me?

ASSISTANT: Sure, please provide your travelling dates.

USER: I would like to travel on 03/11 and return on 03/13.

ASSISTANT: As per your request, there is a flight with price 100 and the connections 1. Shall I proceed for booking?

USER: Ok, please proceed with booking.

ASSISTANT: Your ticket is booked.The flight number is 1012.

USER: Thank you.

ASSISTANT: Welcome, have a great day.