You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Ryan Wilson. I want to book a flight ticket from PHX to IAD, can you help me?

ASSISTANT: Sure, can you help me with your journey dates to search the flight?

USER: I am planning to move on 09/26 and arrival back on 09/28.

ASSISTANT: Do you have any requirements?

USER: Yes, I need a connecting flight in my trip.

ASSISTANT: Flight-1025 of Spirit airlines is available for you. Can I proceed?

USER: Yes, book my flight ticket with that flight.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us, have a safe journey.