You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Sharon Wilson. Due to an emergency, I need to cancel my reservation. Can you please help me with it?

ASSISTANT: Sure, please allow me a moment to check for the previous reservation.

USER: Sure.

ASSISTANT: Sharon Wilson, there is no reservation found under your name.

USER: Ok, not an issue. Thank you.

ASSISTANT: You are welcome.