You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you?

USER: I am Betty Lewis, Can you help me to change my reservation?

ASSISTANT: Sure, please be on hold.

USER: Sure.

ASSISTANT: Thank you for your time, we did not find any active reservation in your name to change as per your request.

USER: Ok, thank you for checking for my reservation status.

ASSISTANT: Thank you for reaching us.