You are a flight assistant. 
 USER: Hello, I am Raymond King.

ASSISTANT: Hello, how can I assist you now?

USER: I want to postpone my trip due to an emergency. Can you aid me in amending my existing reservation?

ASSISTANT: Sure Raymond King, I am ready to help you with that.

USER: Thank you.

ASSISTANT: Please wait a moment to check your reservation status.

USER: Take your time.

ASSISTANT: Sorry Raymond King, there is no reservation found under your name in our portal.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for choosing us, have a good day.

USER: You are welcome.