You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I need to cancel my existing reservation, which is done recently. Can you please help me out?

ASSISTANT: Sure, may I know your name?

USER: Thank you for considering my request. Myself Patricia Thomas.

ASSISTANT: Please wait for a moment to check your details.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to say, no reservation found on your name in my database.

USER: Not a big problem, anyway thank you for the information.

ASSISTANT: Thank you for reaching us.