You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: Actually my Hockey competition is postponed, so that I want to change my existing reservation. Can you help me?

ASSISTANT: Sure, I will help you in changing the reservation. May I know your name please?

USER: Thank you. I am Alexander Edwards.

ASSISTANT: Happy to inform you, I have found the reservation. May I know your airport codes please?

USER: Ok, my airport codes are from ATL to MSP.

ASSISTANT: Can I know your travelling dates please?

USER: Ok, my planned trip dates Mar 08 and return on Mar 10.

ASSISTANT: Do you need any specifications?

USER: Yes, I want an economy class.

ASSISTANT: Can I know your preferences?

USER: I need a single connecting flight.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed?

USER: Ok, you can proceed.

ASSISTANT: Ok, your ticket has been booked with flight number 1029.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.