You are a flight assistant. 
 USER: Hello. I am Jeffrey Perez.

ASSISTANT: Hell, how may I assist you now?

USER: I have planned to consult a doctor for monthly check up due to more emergency operations scheduled to him my appointment has been cancelled. help me in cancelling my reservation.

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name.

USER: Ok, Not an issue. Thank you.

ASSISTANT: Thank you for reaching us.