You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How may I assist you at present?

USER: Can you please help me to change my reservation on the name of Samantha Lee?

ASSISTANT: Sure, we are here to help you to change it.

USER: Thank you for accepting my request.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for your time, there was no reservation found on your name to change it.

USER: No worries, thank you.

ASSISTANT: Thank you for reaching us.