You are a flight assistant. 
 USER: Hello, Kevin Collins here.

ASSISTANT: Hello. How may I help you?

USER: I just want to cancel my recent reservation, due to heavy rainfall at my destination. Can you aid me for cancellation?

ASSISTANT: Sure, please wait a moment I will check and let you know.

USER: Sure.

ASSISTANT: Thanks for waiting, unfortunately there is no reservation found with your name.

USER: Ok, no worries. Thanks for your assistance.

ASSISTANT: Thanks picking us, have a great day.