You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

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

ASSISTANT: Sure, I will help you. Can I have your name?

USER: Please check under the name is Anthony Gonzalez.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, I did not find any reservation on your name in our database.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for approaching us.