You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to cancel my reservation as my plan to visit my home is cancelled. Can you help me?

ASSISTANT: Sure, can you please tell me your name?

USER: My name is Sharon Johnson.

ASSISTANT: Thank you. Please be online for a while, I will check your reservation status and get back to you.

USER: Sure.

ASSISTANT: Sorry, I have not found any reservation by your name in our database.

USER: Ok, thank you for the information.

ASSISTANT: You are welcome and have a nice day.