You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Charles Carter here. I was fallen sick due to bad weather here in my area. So I would like to cancel my current reservation.

ASSISTANT: Sure, give me a minute to check your reservation status.

USER: Ok fine.

ASSISTANT: Sorry, there is no reservation found with the name Charles Carter.

USER: That's ok, thank you for your help.

ASSISTANT: Thank you for contacting us.