You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Robert Perez here. I wanted to cancel my recent reservation due to my planned program got postponed. Can you please help me with that?

ASSISTANT: Sure, give me a moment Perez.

USER: Sure.

ASSISTANT: Perez, you reservation was successfully cancelled. Thank you for contacting us.

USER: Thank you for your help.

ASSISTANT: You are welcome.