You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I want to cancel my recent reservation due to postpone of my exams. Can you please help me in that?

ASSISTANT: Sure, may I know your name for the further process.

USER: Myself Ashley Harris.

ASSISTANT:  Sorry, no reservation found on your name to cancel.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.