You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Carolyn Williams.

ASSISTANT: How can I help you today?

USER: I need to cancel my recent reservation due to heavy tornado in my place, can you please help me out?

ASSISTANT: Sure, I will help you with that. Please wait a moment.

USER: Thank you for your kind reply, I will be waiting.

ASSISTANT: There is no previous reservation available under your name.

USER: That's ok, thank you for searching the details.

ASSISTANT: Thank you for contacting us, have a nice day.