You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. In which way I can aid you today?

USER: I want to change my recent reservation, Can you please help me in that?

ASSISTANT: Sure, I will help you with that. May I know your name for further process?

USER: My name is Laura King.

ASSISTANT: Ok, please hold on a moment.

USER: Sure.

ASSISTANT: There is no previous reservation available under your name.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you for contacting us.