You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I want to cancel my recent reservation as my plan to meet my grand parents got postpone. Can you please help me?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Let me know your name to proceed further?

USER: I am Michael Perez.

ASSISTANT: Ok, please wait a moment, let me check your reservation and revert to you.

USER: Sure.

ASSISTANT: Thank you for your time, unfortunately no reservation found on your name.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for availing us.