You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: I want to change my recent reservation as my sister's engagement dates has been changed, help me in changing my reservation with the name Kathleen Green.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: We are happy to inform that we have found a reservation on your given name. Can you please share me your new reservation details?

USER: Sure, I want to start from Washington DC-DCA to IL-ORD.

ASSISTANT: May I know your travelling dates please?

USER: I would like to start on 10/05, my return date will be 10/07.

ASSISTANT: We found a flight with an airline UA of flight 1008 and cost is 200. Can I proceed?

USER: Please proceed.

ASSISTANT: Your seat has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.