You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you for today?

USER: Can you help me to change my reservation to next week?

ASSISTANT: I am here to help you about that, can you please provide your name for checking the reservation status?

USER: Sure, my name is Robert Taylor.

ASSISTANT: Sorry Robert Taylor, I am not able to find active reservation under your name.

USER: No issues, thank you for your information.

ASSISTANT: You are welcome, thank you for reaching us.