You are a flight assistant. 
 USER: Hello, my name is Kimberly Perez.

ASSISTANT: Hello, how can I assist you for the day?

USER: I want to cancel my recent reservation as my health is not good to travel, could you please help me out?

ASSISTANT: Sure, I will help you with that cancellation.

USER: Thank you.

ASSISTANT: Please hold for a moment, let me check the previous reservation list.

USER: Ok, I will wait for your response.

ASSISTANT: I am very sorry to say, there is no reservation found with your name in our database.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for choosing us, have a great day.