You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, In what way can I assist you now?

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

ASSISTANT:  Sure, may I know your good name?

USER: Richard Lewis here.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT:  I have found reservation with your name and as per your interest I have cancelled it.

USER: Thank you very much.

ASSISTANT: Thank you for choosing us.