You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Edward Miller.

ASSISTANT:  How can I assist you?

USER: I want to cancel my reservation, can you help me with that?

ASSISTANT: Sure, please wait I will revert you in a moment.

USER: Ok.

ASSISTANT:  Sorry to inform you that no reservation was found  on your name in our data base.

USER: Ok, no issues. Thanks for the information.

ASSISTANT:  Thank you for availing us.