You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Charles Evans. Due to some health issue I need to cancel my reservation, can you please help me in that?

ASSISTANT: Sure, I will help you.

USER: Thank you.

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

USER: Sure.

ASSISTANT: Sorry to say that there is no reservation found on your name.

USER: It's ok. Thank you.

ASSISTANT: Thank you for reaching us.