You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am Barbara Smith. Can you help me to book a flight from DEN to DFW?

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

USER: My travelling dates are 08/13 and 08/15.

ASSISTANT: Wait a moment please.

USER: Sure.

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

USER: Ok, proceed with booking.

ASSISTANT: Barbara Smith, your ticket is booked with flight number 1010.

USER: Welcome.

ASSISTANT: Thank you, have a safe journey.