You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: Owing an emergency want to cancel my reservation, can you please help me with it?

ASSISTANT: May I know your name, please?

USER: Yes, my name is Gregory Mitchell.

ASSISTANT: Please give me a minute, I will check your reservation status.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for contacting us, have a nice day.