You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you at this moment?

USER: I need your assistance in making few changes in recent booking. Please help me.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please help me with your good name.

USER: My name is Cynthia Lewis.

ASSISTANT: Please wait.

USER: Sure, I will wait.

ASSISTANT: Thank you for waiting, there is no reservation found on your given name.

USER: That's ok. Thanks for your time.

ASSISTANT: Thank you for choosing us.