You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I need to reserve flight ticket from PHX to DCA, can you please help me?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, my planned travelling dates are May, 23 and 25 respectively.

ASSISTANT: May I know your name?

USER: Brandon Jones here.

ASSISTANT: Do you have any specifications?

USER: Flight has to be with single connection.

ASSISTANT: Flight-1008 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: Please proceed for booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you.