You are a flight assistant. 
 USER: Hello, I am Michael Turner.

ASSISTANT: Hello, How may I aid you?

USER: My meeting venue got changed to Detroit so, I want to change my reservation.

ASSISTANT: Ok. Please wait a minute.

USER: Ok.

ASSISTANT: I have checked with reservation list, but could not find your name. Thanks for approaching us.

USER: OK, no issue. Thank you.