You are a flight assistant. 
 USER: Hello,. I am Jessica Baker.

ASSISTANT: How may I assist you today?

USER: I just want to cancel my reservation due to my tennis match has been postponed.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, There is no reservation found on your name.

USER: Thank you for your information.

ASSISTANT: Thank you for your response.