You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Will you please help me in booking a flight from ORD to DFW?

ASSISTANT: May I know your planned travel dates?

USER: My planned dates are on Nov 16th to 18th.

ASSISTANT: Can I have your name please?

USER: Sure, my name is Matthew Young.

ASSISTANT: Do you need a connecting flight?

USER: I prefer to travel in a connected flight.

ASSISTANT: Do you have any other specifications?

USER: I usually travel in a Big Brand Airlines.

ASSISTANT: I found an economy class in Delta airlines with fare 100 and it is a direct flight. Can I book your ticket?

USER: Ok, you can proceed.

ASSISTANT: Ok, your booking is confirmed with flight number 1023.

USER: Thank you.

ASSISTANT: Thank you for choosing us.