You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I need to change my reservation as I have given wrong details earlier so please help me with that.

ASSISTANT: Ok, I will help you with that.

USER: Thank you.

ASSISTANT: May I know your previous reservation name?

USER: Sure, myself Samantha Baker.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: Sorry Samantha Baker, there is no reservation done on your name.

USER: It's ok fine. Anyway, thank you for your time.

ASSISTANT: Thank you for choosing our agency.

USER: Most welcome.