You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: My wife is sick, so I would like to cancel my trip to take care of her, can you please help in that one?

ASSISTANT: Sure, I will help you. To cancel your reservation I need your name, will you please provide your name?

USER: Sure, my name is Richard Williams.

ASSISTANT: Ok Williams, please hold on a moment to check  your previous reservation status.

USER: Sure.

ASSISTANT: We regret that, there is no reservation found with your name in our records.

USER: Thank you for your help, I will make another reservation as soon as I can.

ASSISTANT: It's been my pleasure to help you.