You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: Will you please help me to change an earlier reservation which was reserved on Benjamin Young?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: I am sorry to say that there is no flight found under your name.

USER: Ok, not a problem. Thank you for checking my reservation status.

ASSISTANT: Thank you for reaching us, have a great day.