You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Edward Nelson.

ASSISTANT: How can I assist you?

USER: Owing an emergency, I want to cancel my recent reservation. Can you please help me?

ASSISTANT: Sure, please wait a moment.

USER: Ok, take your time.

ASSISTANT: Sorry Nelson, there is no reservation found on your name.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for approaching us.