You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I render you?

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

ASSISTANT: Sure, we will help you.

USER: Thank you.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Ok fine, thanks for your response.

ASSISTANT: Thank you.