You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I just want to cancel my reservation due to some health issue. Can you help me with this?

ASSISTANT: Sure, I am happy to help you. Can you please share your name?

USER: Sure, I am Rachel King.

ASSISTANT: Please wait for a while, I will check and get back to you.

USER: Sure, I will wait.

ASSISTANT: Sorry, there is no reservation found on your given name.

USER: Ok, Thank you for providing information.

ASSISTANT: Thanks for choosing us.