You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you?

USER: I am Susan Nelson, can you help me in booking a flight from DCA? My destination is PHX.

ASSISTANT: Ok. Please tell your trip dates?

USER: My travelling dates are 11/16 and 11/18.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT:  Flight 1025 with 1 connection limit, costs 100 from Delta airlines.

USER: Proceed.

ASSISTANT: Ok. Your flight has been booked.

USER: Thank you for your great service.

ASSISTANT: Welcome.