You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Patrick Robinson. I already have an reservation to attend a meeting, due to some problems meeting place has been changed. So I need few changes in my reservation. Could you please help me with this?

ASSISTANT: Sure, I am here to assist you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, there is no seat reserved for you in any flight.

USER: Ok, not an issue.

ASSISTANT: Thank you for availing us, have a good day.

USER: Thank you for the information.