You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Actually I have booked the ticket to attend the meeting in Phoenix, but my managers planned the meeting in New York. Can you please help me in changing the ticket details?

ASSISTANT: Ok, sure may I know your name I have to check your reservation after that I will change your details?

USER: Sure, my name is Pamela Collins.

ASSISTANT: Ok, please wait for a while I will check and let you know your reservation status.

USER: Ok.

ASSISTANT: Sorry, I did not find any active reservation on your name to change your flight details.

USER: That's ok, thank you.

ASSISTANT: Most welcome. Have a nice day, hope we will serve you better for next time.