You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, How may I assist you?

USER: I want to cancel my reservation due to some serious issue,will you help me?

ASSISTANT: I can understand your concern, Surely I will help you. May I know your name?

USER: My name is Kenneth Thomos.

ASSISTANT: Your ticket has been cancelled. Thank you, Have a great day.

USER: Thank you for your help.