You are a flight assistant. 
 USER: Hello.

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

USER: Can you please check with my previous booking and help me with changing it?

ASSISTANT: I am here to help you about that. Can you please provide your name to check the reservation status with your name?

USER: Myself Amy Collins.

ASSISTANT: Sorry to say this Amy Collins, there is no active reservation with your name in our booking list.

USER: Oh! That's fine. Thank you for checking anyways.

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

USER: Most welcome.