You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Please book me a ticket from HOU to IAD to meet my family.

ASSISTANT: Sure, please share your trip dates.

USER: I have planned to travel on Aug 03rd and return on Aug 05th.

ASSISTANT: Do you need a stopover?

USER: No, I prefer direct flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Please mention your good name.

USER: Myself Sandra Williams.

ASSISTANT: According to your given information, we have found a flight with an Southwest airline of flight 1028 in an economy class with connection limit is 0. Shall I book?

USER: Ok, please book this ticket.

ASSISTANT: Your booking is confirmed at the cost of 200.

USER: Thank you.

ASSISTANT: Thank you for opting us.