You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Rachel Brown.

ASSISTANT: How may I assist you today?

USER: I need to cancel my reservation as my project got ramp down. Can you help me?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry to say that, there is no active reservation found on your name.

USER: That's ok, thanks for your response.

ASSISTANT: Thank you for reaching us.