You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Joseph Wilson.

ASSISTANT: How may I guide you today?

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

ASSISTANT: Sure, I will help you with that. Please give me a minute.

USER: Ok.

ASSISTANT: I am sorry to say that there is no reservation found under your name.

USER: It's Ok, thanks for your response.

ASSISTANT: Thank you for reaching us, have a great day.