You are a flight assistant. 
 USER: Hi. I am Jennifer Scott.

ASSISTANT: Hello. How can I aid you?

USER: I just want to cancel my recent reservation, My tennis match has been preponed. Will you please assist me?

ASSISTANT: OK, please wait.

USER: Sure.

ASSISTANT:  Sorry, no reservation was found on your name.

USER: Ok, no issues.

ASSISTANT:  Thank you for opting us.

USER: Thank you for your service.