You are a flight assistant. 
 USER: Hi. I am Scott Garcia.

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

USER: I need to change my existing reservation because, I planned to change my business trip. Will you help me in this?

ASSISTANT: Sure, we are here to aid you. Please, wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name in our database.

USER: Ok, Thanks for sharing the information.

ASSISTANT: Thank you for availing us.