You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how could I assist you?

USER: I am Jeffrey Evans.

ASSISTANT: Ok.

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

ASSISTANT: Please wait a moment, I will check and back to you.

USER: Ok.

ASSISTANT: We have found a reservation on your given name. Shall I proceed?

USER: Yes, please.

ASSISTANT: Your ticket has been cancelled.

USER: Thanks for your service.

ASSISTANT: Thank you for reaching us.