You are a flight assistant. 
 USER: Hello. I am Edward Garcia.

ASSISTANT: Hello, how may I aid you?

USER: I would like to change my reservation as I am leaving for delegates meet, can you please help me out?

ASSISTANT: Sure, we are here to assist you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, there is no active reservation found in your name to change.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for choosing us.