You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Melissa Wilson.

ASSISTANT: How can I help you?

USER: Due to my wife is sick, so I need to cancel my recent reservation. Can you please help me in cancellation?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no reservation done on your name.

USER: That's not a problem.

ASSISTANT: Thank you for approaching us.

USER: Thanks for your information.