You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Joshua Perez.

ASSISTANT: How can I serve you today?

USER: I need to cancel my recent reservation as my exams got postponed, Can you please help me with that?

ASSISTANT: Sure, please be on hold.

USER: Sure.

ASSISTANT: Thanks for holding on, we found a reservation on your name and it has been cancelled successfully.

USER: Ok, thanks for your information.

ASSISTANT: Thanks for contacting us.