You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what services are you seeking from us?

USER: Could you please book  a flight ticket from IAD to MCO?

ASSISTANT: Sure, please share me your trip dates.

USER: My trip dates are Mar 05 and Mar 07.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need  a connecting flight.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: I am Lisa Evans.

ASSISTANT: Are there any other specifications?

USER: I prefer an economy class.

ASSISTANT: There is a direct flight 1006 in Delta airlines at the price of 100 with economy class. Can I proceed?

USER: Ok, proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for availing us.