You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you help me to book a flight ticket from IAD to EWR?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My travelling dates are 11 to 13 of Sep.

ASSISTANT: Do you have any preferences about flight connections?

USER: I need a connecting flight.

ASSISTANT: Do you have any preferences about class?

USER: No.

ASSISTANT: Please mention your name.

USER: I am Larry Martin.

ASSISTANT: The JetBlue airlines providing an economy class flight with price 200 and the connections 1. Shall I confirm your ticket?

USER: Please proceed.

ASSISTANT: Your ticket is booked. The flight number is 1009.

USER: Thanks for helping me.

ASSISTANT: Welcome, have a great day.