You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I support you?

USER: Can you please change my existing reservation?

ASSISTANT: Sure, we are happy to help you. Please help me with your good name.

USER: Sure, My name is Debra White.

ASSISTANT: Sorry, there is no active reservation on your name in our data.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you for availing us.