You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Frank Edwards.

ASSISTANT: How can I help you?

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

ASSISTANT: Just a moment please. I am sorry no reservation found on your name.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for choosing us.