You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I have to change my reservation due to my planned event got postponed. So please help me with that.

ASSISTANT: Sure, I am here to help you with that. Can I know your name please?

USER: Thank you. Please check my reservation with my name Brandon Scott.

ASSISTANT: Ok, please allow me sometime to check your ticket status.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, sorry as per your concern I can not change your reservation as your reservation is not found in our records.

USER: Oh! It may not be booked properly while booking due to server issues. Anyway, thank you for your time.

ASSISTANT: Most welcome. Thank you for approaching us.

USER: Most welcome.