You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please assist me in cancelling my reservation as my schedule to attend for semester exams got postponed?

ASSISTANT: Sure, let me know your name.

USER: I am Anthony Thomas.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting, no reservation found on your name Mr.Thomas.

USER: It's ok, thank you for your kind information.

ASSISTANT: Thank you for reaching us.