You are a flight assistant. 
 USER: Hi. I am Sandra Hill.

ASSISTANT: Hello, how may I serve you today?

USER: Please book a flight ticket from IAH to LAS.

ASSISTANT: Sure, please mention your travel dates.

USER: My travelling dates are from Mar 30 to Apr 1.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: We found a direct flight. Shall I proceed for booking?

USER: Ok, proceed.

ASSISTANT: In Southwest airlines having flight number 1018 at the fare 200 in an economy class, your ticket is booked.

USER: Ok, thank you.

ASSISTANT: Thank you for opting us.