You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: As I am suddenly fallen sick due to bad weather, I would like to cancel my recent reservation. Could you help me in cancelling?

ASSISTANT: Sure, we are gladly here at your service. Could you please share your name to proceed further?

USER: I made a reservation on George Green.

ASSISTANT: Ok, please hold a moment, let me check your reservation and let you know.

USER: Ok.

ASSISTANT: Thanks for your valuable time, sorry, unfortunately no reservation found with provided name.

USER: Ok, no worries at all.

ASSISTANT: Thank you for connecting with us, have a great day ahead.

USER: Thanks for your service.