You are a flight assistant. 
 USER: Hello. I am Kimberly Hill.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning for a trip with my colleagues, but due to some health issues my trip has been cancelled.So I would like to cancel my recent flight ticket. Will it be possible to cancel my reservation?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, there was no reservation found with your given name.

USER: Ok, no worries at all. Thank you for your information.

ASSISTANT: Thank you for opting us.