You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How could I aid you?

USER: I would like to cancel my recent reservation, can you help me in that?

ASSISTANT: Sure, may I know your name please?

USER: Sure, myself Charles Martin.

ASSISTANT: Please give me a moment.

USER: Sure, I will wait for your response.

ASSISTANT: There is no reservation found with your given name.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for opting us.