You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: As my friend met with an accident, I want to cancel the reservation with the name of Justin Walker. Will you aid me in this?

ASSISTANT: Sure, let me check the status and revert you.

USER: Ok.

ASSISTANT: Thanks for your time. There is no reservation found by this name.

USER: No problem. Thank you for your information.

ASSISTANT: Thank you for opting us.