You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in flight ticket booking with the name of Patrick Carter?

ASSISTANT: Sure, may I know your airport codes?

USER: My source and destination airport codes are, SEA to IAD.

ASSISTANT: Any connecting flight required for this reservation?

USER: Yes, I prefer connecting flight for this journey.

ASSISTANT: May I know your travelling dates?

USER: My journey start on Nov 14th, and return back on Nov 16th.

ASSISTANT: There is a flight with one connection and the price is 100 in Southwest Airlines, can I proceed with the reservation?

USER: Ok, proceed.

ASSISTANT: Your ticket has been reserved with the flight number 1004.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching our service.