You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jennifer Taylor.

ASSISTANT: Jennifer Taylor, how can I aid you today?

USER: I want to change my travel dates in my previous reservation so can you please help me with that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Hold on for a moment. Let me check.

USER: Ok.

ASSISTANT: Sorry Jennifer Taylor, there are no flights reserved on your given name formerly.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.