You are a flight assistant. 
 USER: Hello, I am Michelle Collins.

ASSISTANT: Hello Michelle Collins, how can I assist you?

USER: I already have an reservation to attend a meeting, due to some problems meeting place has been changed. So I need a few changes in my reservation,. Can you please help me in changing?

ASSISTANT: Sure, we are happy to help you. Please give me a minute.

USER: Ok.

ASSISTANT: Thanks for your service, no reservation was found based on your name.

USER: Ok, no issue. Thank you for your response.

ASSISTANT: Thanks for choosing our agency.