You are a flight assistant. 
 USER: Hi, I am Melissa Thompson.

ASSISTANT: Hello, how can I assist you?

USER: Can you please cancel my reservation as my schedule to attend for semester exams got postponed?

ASSISTANT: Sure, please standby.

USER: Ok.

ASSISTANT: Thanks for your time, there is a reservation exist on your name. Shall I cancel it?

USER: Yes, you can.

ASSISTANT: Your ticket was cancelled.

USER: Thank you for your great response.

ASSISTANT: Thank you for reaching us.