You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Michael Hall. I would like to change my reservation which is under my name. Can you please help me with that?

ASSISTANT: Sure, please wait a moment.

USER: Sure, take your time.

ASSISTANT: Sorry, there are no active reservations on your name.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for checking the details with our service.

USER: You are welcome.