You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I have to attend a Live Concert at San Francisco, could you please help me with booking a flight ticket from IAD to SFO?

ASSISTANT: Sure, will you please provide your preferable dates of travelling?

USER: I would like to depart on Dec 20th and return on Dec 22nd.

ASSISTANT: Do you have any connection preference?

USER: I am looking for a connecting flight.

ASSISTANT: On whose name I have to book the flight ticket?

USER: Please book the ticket under the name Steven Baker.

ASSISTANT: Any more specifications do you have?

USER: Make sure that my return time must be afternoon.

ASSISTANT: Please be on hold to check the flights.

USER: Sure, take your time.

ASSISTANT: Based on your information, I have found a flight with 1 connection having with the fare of 200 provided by Spirit airlines in economy class. Are you ok with this flight?

USER: Yes, please confirm the booking.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1000.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for approaching us, have a great day.