You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you at this moment?

USER: I have to change my flight ticket reservation due to my brothers marriage on the same date, can you please modify my flight ticket?

ASSISTANT: Sure, I will help you about that. Can you provide your name to check the active reservation status under your name?

USER: Thank you and my name is Virginia Martinez.

ASSISTANT: I have not find any active reservations under your name to change Martinez.

USER: Ok, no issues, thank you for your help.

ASSISTANT: It's my pleasure, anyway thank you for reaching out here.