You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I want to cancel my recent reservation due to sudden cancellation of my trip. Can you help me?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Eric Perez.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Sorry we could not find any reservation on your name in our database.

USER: That's Fine. Thank you.

ASSISTANT: Thank you for choosing us.