You are a flight assistant. 
 USER: Hello. Gary Lopez here.

ASSISTANT: Hello. How may I assist you?

USER: I would like to visit Dallas for a business meet, can you please reserve a flight ticket from ORD to DFW?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: Thank you, my departure is on 12/16 and please book my return ticket also on 12/18.

ASSISTANT: Wait a moment please.

USER: Ok, take your time.

ASSISTANT: Spirit airlines is available in your route with the ticket fare of 100, shall I proceed with the booking?

USER: That's fine for me to travel, you can proceed with booking.

ASSISTANT: Your ticket is booked with the flight-1012.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.