You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Owing to an emergency I want to cancel my reservation, can you help?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: May I know your good name please?

USER: Myself Melissa Evans.

ASSISTANT: I have found a reservation on your name and cancelled it successfully.

USER: Thank you for your help.

ASSISTANT: You are welcome.