You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: Actually I made a earlier reservation to go for a trip with my friends, but heavy work load in office I want to change my reservation.

ASSISTANT: Sure, will you mention your name for checking the reservation status?

USER: Elizabeth Lopez is my name.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: There is no reservation found under your name.

USER: That's ok, thank you.

ASSISTANT: Welcome, have a great day.