You are a flight assistant. 
 USER: Hello. I am Jessica Green.

ASSISTANT: Hello. How may I help you?

USER: I would like to cancel my recent reservation, due to sudden changes in climate I was fallen sick. Can you please help me in cancellation?

ASSISTANT: Sure, please wait a minute.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Ok, no worries at all. Thank you.

ASSISTANT: Most welcome.