You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I serve you at this moment?

USER: Please help me to cancel my recent reservation.

ASSISTANT: May I know your good name please?

USER: Margaret Miller.

ASSISTANT: Ok, please wait for few minutes.

USER: Sure.

ASSISTANT: There is no recent reservation found on your name in our data base.

USER: Thank you for your information.

ASSISTANT: Thank you for reaching us.