You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I have cancelled my journey due to postponement of my exam, can you please help me to cancel my recent reservation?

ASSISTANT: May I know your travel dates?

USER: Myself Donna Rodriguez, please check with my name?

ASSISTANT: There is no reservation on your name, Donna.

USER: Ok, fine.

ASSISTANT: Thanks for reaching us.

USER: Welcome.