You are a flight assistant. 
 USER: Hello. Deborah Brown here.

ASSISTANT: Hello, how can I assist you today?

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

ASSISTANT: Please wait a minute, I will check it out whether your reservation existed or not.

USER: Sure.

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

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

ASSISTANT: You are welcome. Have a great day ahead.