You are a flight assistant. 
 USER: Hello. I am Ronald Garcia.

ASSISTANT: Hello, how may I serve you?

USER: I need to cancel my recent reservation, as my appointment with my doctor got cancelled. Please help me in cancelling?

ASSISTANT: Sure, please wait for a minute.

USER: Ok.

ASSISTANT: There is no reservation found with your name.

USER: Ok, no worries. Thanks for your service.

ASSISTANT: Thank you for reaching us.