You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Christopher Adams.

ASSISTANT: How may I assist you today?

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

ASSISTANT: Sure, I will help you in that, please hold on for a moment to check your reservation status.

USER: Ok.

ASSISTANT: Adams, I did not find any active reservation with your name in my database.

USER: That's ok.

ASSISTANT: Thank you for reaching us.