You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Shirley Allen.

ASSISTANT: Allen, how can I assist you?

USER: Due to some personal issues, I would like to postpone my journey. Can you please change my existing reservation to some other dates?

ASSISTANT: Sure, I will do that for you. Please wait, let me check your reservation status first.

USER: Ok, take your time.

ASSISTANT: Allen, I have not found any reservation under your name in our database.

USER: It's ok, no issues. Thank you for the information.

ASSISTANT: You are most welcome and have a nice day.