You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I have to attend for a seminar in JFK. Can you please make a reservation from IAD?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, I want to depart on Sept 5 and need to return on Sept 7.

ASSISTANT: Please share me your name.

USER: Raymond Collins.

ASSISTANT: Flight-1003 is available with Spirit airlines having single connection and the ticket costs you 100 only in economy class. Are you comfortable with this flight?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you.