You are a flight assistant. 
 USER: Hi, I am Edward Hernandez.

ASSISTANT: Hello, how may I aid you?

USER: I need to cancel my recent reservation due to postpone of my practical exam. Could you please help me in doing that?

ASSISTANT: Sure, I am here to help you. Let me check the status and revert you.

USER: Sure.

ASSISTANT: Thanks for your time. There is no reservation found on your name.

USER: Thank you for your valuable information.

ASSISTANT: Thanks for your response.