You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: Could you please help me in booking a flight ticket from PHX to DCA?

ASSISTANT: Sure, may I know your travel dates?

USER: My travel dates are Jan 23 and Jan 25.

ASSISTANT: Please share me your name.

USER: My name is Gary King.

ASSISTANT: Do you have any specifications?

USER: Yes, I am looking for a flight with one connection.

ASSISTANT: Flight-1000 is available with Spirit airlines having single connection and the ticket costs you 200 only in economy class. Are you comfortable with this flight?

USER: Ok, proceed with the booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you.