You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I need you to make few changes in my recent reservation. Please help me.

ASSISTANT: Sure, please provide your name to render your information.

USER: My name is Michael Phillips.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait.

ASSISTANT: We regret to inform you that there is no reservation found on your name.

USER: That's ok. Thank you.

ASSISTANT: Thank you for contacting us.