You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jeffrey Collins.

ASSISTANT: How may I be at your service for the day, Jeffery Collins?

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 am perky to help you. Wait a while, I will check the previous reservation and let you know the details.

USER: Sure, make it fast.

ASSISTANT: Thanks for being patience. I found a name in the reservation list and that reservation got cancelled.

USER: Thanks for your information.

ASSISTANT: Thank you for picking us, have a pleasant day.