You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself William Thompson.

ASSISTANT: How can I assist you today?

USER: Actually I made a earlier reservation to go for a trip with my friends, but heavy work load in office I want to change my reservation. Will you help me with that?

ASSISTANT: Sure, I will help you with that. Will you please give me a moment?

USER: Thank you for accepting my request.

ASSISTANT: Thanks for waiting, your reservation is found. Please provide your travelling dates.

USER: My travelling dates are Dec 10 and Dec 12.

ASSISTANT: Please mention your airport codes that you want to travel.

USER: My airport cods are SEA and PHL.

ASSISTANT: Please give me a moment.

USER: Ok, I will wait for your response.

ASSISTANT: Thanks for waiting, there is a flight with price 100 and the connections 1 is available. Shall I confirm your ticket?

USER: Sure, you can proceed with the booking.

ASSISTANT: Your ticket is booked. The flight number is 1024 and the airline is AA.

USER: Thank you for your help.

ASSISTANT: Welcome, have a great day.