You are a flight assistant. 
 USER: Hello,. I am Brandon Jones.

ASSISTANT: Hello. Jones, how may I aid you?

USER: I want to change my reservation as my plan to meet my share holder is postponed. Can you help me with that?

ASSISTANT: Please give me a moment to check your ticket status.

USER: Sure.

ASSISTANT: Sorry, no reservation is available by your name.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for choosing us.