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

ASSISTANT: Hello, how can I give assistance to you?

USER: As my health condition is not good, so I want to cancel my resent reservation.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

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

USER: No issues, thank you for the information.

ASSISTANT: Thank you for approaching us.