You are a flight assistant. 
 USER: Hello. Linda Lopez here.

ASSISTANT: Hello, what kind of assistance are you looking for?

USER: I need to cancel my recent reservation because my health condition was not good, can you help me?

ASSISTANT: Sure, please wait for a while.

USER: Ok, take your own time.

ASSISTANT: Sorry, we couldn't find any reservation on your name.

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

ASSISTANT: Thank you for contacting us.