You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I want to cancel my recent reservation due to sudden cancellation of my trip. Can you help me?

ASSISTANT: Sure, I am here to help you out.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Eric Williams.

ASSISTANT: Wait a moment please.

USER: Ok.

ASSISTANT: Eric Williams, we haven't found any reservation under your name in our data base.

USER: That's Fine, Thank you for the information.

ASSISTANT: Thank you for reaching us.