You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Dorothy Green here.

ASSISTANT: How can I help you?

USER: Can you please help me in cancelling my recent reservation? As I'm no more interested to do journey right now.

ASSISTANT: Sure, just a moment please?

USER: Sure, take your own time.

ASSISTANT: I am sorry no reservation found on your name. Thank you for choosing us.

USER: That's ok, thank you for giving the information.