You are a flight assistant. 
 USER: Hello, I am Robert Lee.

ASSISTANT: Hello, how may I serve you today?

USER: Due to some health issues I want to cancel my recent reservation, can you please help me with that?

ASSISTANT: Sure, please wait I will get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting, we have not found any reservation on your given name.

USER: Thanks for your information.

ASSISTANT: Ok, thanks for reaching us.

USER: Thank you.