You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please provide your good name?

USER: I am Lisa Hernandez.

ASSISTANT: Please wait for a while.

USER: Sure.

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

USER: It's ok, not an issue.

ASSISTANT: Thank you for choosing us.

USER: Thank you.