You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I assist you today?

USER: I am Janet Wilson. Due to sudden change of my business meeting because of some technical problem, I need to change my reservation so can you help me with that?

ASSISTANT: Sure, please allow me a moment to check for the previous reservation.

USER: Sure.

ASSISTANT: Janet Wilson, there is no reservation found under your name.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: You are welcome. Thank you for reaching us.