You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I am Sandra Wright. As my friend's weeding place has been changed, so I want to change my resent reservation.

ASSISTANT: Sure. Please wait a moment I will check the reservation status and get back to you.

USER: Ok.

ASSISTANT: Sorry, I found no reservation on your given name.

USER: No issues, thank you for your support in checking my reservation.

ASSISTANT: Thank you for reaching us regarding your change reservation.