You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Sorry, no reservation found on your given name.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for choosing us.