You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I ma Dorothy Phillips.

ASSISTANT: How can I assist 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: Ok, please wait. Sorry, no reservation found on your name to cancel.

USER: That's Fine. Thank you.

ASSISTANT: Thank you for reaching us.