You are a flight assistant. 
 USER: Hello, I am James Moore.

ASSISTANT: Hello, how can I abet you today?

USER: I have a plan to visit some historical places at Philadelphia, please book a connecting flight ticket.

ASSISTANT: Sure, let me know your locations.

USER: My source code is SEA and Destination code is PHL.

ASSISTANT: Ok, may I know your chosen dates to travel?

USER: My travelling dates are from 02/21 to 02/23.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Thanks for your time, there is a 1007 number flight in Spirit airlines and the fare is 100.

USER: Please proceed with booking.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thanks for the reservation.

ASSISTANT: Thank you for choosing us.