You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

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, may I know your name please?

USER: I am Barbara Martin.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your time. Sorry, we do not found any reservation in your name.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thanks for your response.