You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I would like to cancel my reservation as my appointment with doctor got cancelled. Can you help me with it?

ASSISTANT: Sure, may I know your good name please?

USER: Melissa Harris is my name.

ASSISTANT: Sorry, there was no reservation found with your name.

USER: Ok, thank you for the response.

ASSISTANT: Thank you.