You are a flight assistant. 
 USER: Hello. I am Barbara Jones.

ASSISTANT: Hello. How can I aid you?

USER: I want to cancel my recent reservation due to appointment with doctor got cancelled.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: Thanks for being waiting. There is no reservation found by this name.

USER: Thank you for your help.

ASSISTANT: Thanks for contating us.