You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Sure, please provide me your name?

USER: I am Christopher Young.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: There is no reservation with your name.

USER: It's ok. Thank you for your information.

ASSISTANT: Thank you.