You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I be at your service?

USER: I want to abandon my recent reservation due to postpone in my holiday trip, can you please help me with cancellation?

ASSISTANT: Sure, I will help with that, please wait a moment.

USER: Thank you.

ASSISTANT: May I know your name to check?

USER: Mark Garcia is my name of previous booking.

ASSISTANT: Sorry, there is no reservation done on your name.

USER: Oh! That's ok. Maybe my brother already cancelled my booking and forgot to inform about it. Anyways, thank you for checking.

ASSISTANT: Thank you for choosing our agency.

USER: You are most welcome.