You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I guide you for today?

USER: I am Scott Campbell from Charlotte.

ASSISTANT: Yes, Scott how may I guide you?

USER: I want to change my travel dates in my previous reservation, can you help me with that?

ASSISTANT: I will try to assist you about that.

USER: Thank you.

ASSISTANT: Give me some time I will let you know about your reservation status.

USER: Ok.

ASSISTANT: Sorry to say Scott, I can not find any active reservations under your name to change.

USER: Oh! It's ok no problem. Thank you for your service.

ASSISTANT: My pleasure, thank you for reaching out here.