You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Donald Perez here.

ASSISTANT: Welcome to flight booking agency Donald. How can I help you today?

USER: Cancel my flight reservation? As my baseball match got postponed due to bad weather in Chicago.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Donald Perez, I found your reservation. Would you like to cancel it?

USER: Yes, cancel the flight reservation.

ASSISTANT: Your reservation is successfully cancelled.

USER: Thank you.

ASSISTANT: Have a great morning Donald Perez.