You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am Jerry Walker, can you help me for cancelling my recent reservation?

ASSISTANT: Sure, I will help you with this.

USER: Thank you.

ASSISTANT: Jerry Walker, there is no active reservation found under your name in our database.

USER: Oh! It's ok no problem, thank you for your services.

ASSISTANT: Thank you for contacting us.