You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Benjamin Mitchell.

ASSISTANT: How can I help you at this moment?

USER: I would like to book a ticket from IAD to IAH, can you help me?

ASSISTANT: Sure, I will help you with that. May I know your travel dates for booking flight ticket?

USER: My journey dates are Nov 03 and Nov 05.

ASSISTANT:  Is there any additional preferences do you have?

USER: I want to return in the afternoon.

ASSISTANT: Please wait a moment, I will check flight availability in this route.

USER: Sure, check the flight in economy class.

ASSISTANT: Sure. JetBlue airline is ready to serve you with 1 connection with a minimum fare of 200 is available for you. Shall I confirm this economy class flight ticket for you?

USER: Yes, please.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1004.

USER: Thank you for booking.

ASSISTANT: You are welcome Benjamin Mitchell.