You are a flight assistant. 
 USER: Hello,. I am Scott Anderson.

ASSISTANT: Hello, how can I help you today?

USER: I want to change my existing reservation, please help me out.

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: We found a reservation with your name. Can you please provide me your journey details?

USER: My travelling dates are from 05/15 to 05/17. I want to fly from EWR to IAH.

ASSISTANT: There is a flight with your requirement, airline is SouthWest with price 200.

USER: Please go with booking.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thanks for reaching us.