You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How can I amend you today?

USER: Could you please help me with changing my reservation due to sudden change in my plan for a trip?

ASSISTANT: Sure, we are here to help you. Let me know your name for further process.

USER: Reservation was done by the name Elizabeth Moore.

ASSISTANT: Thanks for sharing your name. There is no reservation found on your name.

USER: Fine, thank you for the information.

ASSISTANT: Thank you for reaching us.