You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Timothy Martinez.

ASSISTANT: How can I amend you today?

USER: Can you please change my reservation as my plan to meet my friend as been delayed?

ASSISTANT: Sure, we are here to aid you.

USER: Thank you.

ASSISTANT: No reservation found on your name.

USER: No issues. Thank you.

ASSISTANT: Thank you for availing us.