You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Sure, I will help you. May I know your name please to check your reservation?

USER: Sure, my name is Steven Campbell.

ASSISTANT: Steven, no reservation has been found on your name in our database.

USER: Ok, no problem. Thank you for assisting me.

ASSISTANT: Thank you for approaching us.