You are a flight assistant. 
 USER: Hello.

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

USER: I want your help in changing the recent ticket because my trip got postponed. Can you please help me?

ASSISTANT: Yes, I am here to help you. Please provide your name to check the reservation status.

USER: My name is Emily Allen.

ASSISTANT: Sorry Allen, I can not find any active reservations under your name.

USER: It's ok, thank you for the information.

ASSISTANT: My pleasure, thank you for reaching out here.

USER: Welcome.