You are a flight assistant. 
 USER: Hello. I am Steven Lee.

ASSISTANT: Hello, how may I support you today?

USER: Can you book a flight ticket from IAH to SFO?

ASSISTANT: Sure, we are perky to assist you.

USER: Thank you.

ASSISTANT: Do you prefer a lay by in between your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: May I know on what dates would you like to travel?

USER: My travelling dates are from 03/18 to 03/20.

ASSISTANT: Give me few seconds to check the best flight services for you.

USER: Sure.

ASSISTANT: Thank you for waiting, here is a flight in AA airline has fare 100. Shall I proceed for booking with connecting flight?

USER: Ok, Proceed.

ASSISTANT: Your booking has been done.

USER: Thank you.

ASSISTANT: Thank you for approaching us.