You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Due to health problem, I want to quit my trip. Can you please help me in cancelling my recent reservation?

ASSISTANT: Sure, may I know your name?

USER: Yes, my name is Mary Garcia.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, take your own time.

ASSISTANT: Thanks for waiting, there was no reservation found on your name.

USER: Oh! May be something went wrong while I was booking the ticket, thank you anyways.

ASSISTANT: Thank you for choosing us.