You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Owing to an emergency I would like to cancel my recent my reservation. Can you please help me out with that?

ASSISTANT: Let me know your name.

USER: Thank you for accepting my request, I have done my reservation on the name of Pamela Anderson.

ASSISTANT: Sorry, no reservation found by your name.

USER: Oh! I think it might be cancelled by my cousin. Thank you for the information.

ASSISTANT: Thank you.

USER: Welcome.