You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am Ryan Roberts. I would like to book a ticket to Seattle, can you please help me out?

ASSISTANT: Sure, may I know your trip dates?

USER: I am travelling on these dates 03/10 and 03/12.

ASSISTANT: May I know your airport codes of source and destination?

USER: I am flying from PHL to SEA.

ASSISTANT: Wait for a while to check with the flight.

USER: Ok.

ASSISTANT: Thank you for waiting, there is a flight in Delta airlines with a break of journey, is it ok for your ticket booking?

USER: Ok, you can proceed with this flight.

ASSISTANT: Ryan, your booking is done in 1017 flight number in the above mentioned airlines to your region.

USER: Thank you for your services.

ASSISTANT: Welcome.