You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Daniel Green.

ASSISTANT: In which way I can help you at this moment?

USER: I would like to cancel my recent reservation. Will you help me with this?

ASSISTANT: Sure, I will help you with that. Please wait a moment, I will check your previous reservation status.

USER: Sure, I will wait for your response.

ASSISTANT: There is no previous reservation available under your name.

USER: Oh! May be something went wrong while booking the ticket. Anyways, thank you for providing information.

ASSISTANT: Thank you for contacting us, have a nice day Daniel Green.