You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Michelle Turner.

ASSISTANT: Michelle Turner, how may I render you?

USER: Please help me to cancel my active reservation as my meeting was cancelled.

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Sorry, no reservation is available by your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.