You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. Can I know your good name?

USER: Michael Hill is my name.

ASSISTANT: How can I assist you?

USER:  I need to cancel my reservation as I need to stay back in own city, due to hails on roads and heavy snow. Can you help me?

ASSISTANT: Sure. Can you please wait a while?

USER: Sure, take your best time.

ASSISTANT: Thanks for being waiting. We didn't found any reservation by this name.

USER: Ok, not a problem at all. Thank you for instant response.

ASSISTANT: Thank you for choosing us.