You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Raymond Allen.

ASSISTANT: Ok.

USER: I need to cancel my recent reservation, due to some health issue. Can you please help me out?

ASSISTANT: I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for some time.

USER: Ok, take your time.

ASSISTANT: Thanks for waiting.

USER: My pleasure.

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

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.