You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help 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. Can you help me?

ASSISTANT: Sure, please mention your name to check the previous reservation.

USER: Angela Adams here.

ASSISTANT: Sorry Adams, I did not find any  reservation under your name.

USER: No issue, Thanks for the information.

ASSISTANT: My pleasure.