You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Paul Scott want to visit DFW, can you book a ticket from DEN?

ASSISTANT: Sure, can you please provide your travelling dates to proceed further?

USER: Sure, my travelling dates will be 02/28 and 03/01.

ASSISTANT: Wait a moment please.

USER: Ok.

ASSISTANT: Delta airlines is available on this route with a ticket fare of 100, shall I book your ticket?

USER: Yes, you can book.

ASSISTANT: Paul Scott, your ticket is booked with flight number 1020.

USER: Thank you.

ASSISTANT: Thank you, have a safe journey.