You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. Is there any help that you need?

USER: I am Eric Brown, would you please help me with changing my reservation to new travel dates?

ASSISTANT: Sure, I can help you and please give me some time to check it.

USER: Ok, take your time.

ASSISTANT: Thank you for being on hold, there is no reservation obtained based on my check in my portal.

USER: It's ok, thanks for checking.

ASSISTANT: You are most welcome and thank you for reaching our agency.