You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me in cancelling my recent reservation, as my health is not good?

ASSISTANT: Sure, I will help you to cancel your reservation. Please share me your name.

USER: Thank you for the response. My name is Dorothy White.

ASSISTANT: Ok, please wait a moment.

USER: Ok, sure.

ASSISTANT: Sorry, no reservation found on your name to cancel your reservation.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Welcome, have a nice day.