You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I want to cancel my recent reservation due to cancel of my seminar. Could you please help me?

ASSISTANT: Sure, can you please share your name?

USER: I am Pamela Mitchell.

ASSISTANT: Ok, please be on hold.

USER: Sure.

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

USER: No worries, thank you for the information.

ASSISTANT: Thank you for choosing us.