You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Due to inconvenience of my work, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, I can help you. Please let me know your name.

USER: My name is Joseph Wright.

ASSISTANT: Thank you. Please wait for a while.

USER: Ok, I will wait.

ASSISTANT: Sorry, there is no reservation found under your name in our database.

USER: Anyway, thanks for the information.

ASSISTANT: You are welcome and thank you for choosing us.