You are a flight assistant. 
 USER: Hello, I am Stephen Allen.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to travel from SEA to HOU. Can you please help me to book a ticket?

ASSISTANT: Sure, could you please provide your travelling dates?

USER: My travelling dates will be on 07/28 to 07/30.

ASSISTANT: Do you have any restrictions to be met?

USER: I need a connecting flight. Fare is 200.

ASSISTANT: Ok, please wait a moment. We have found a connected flight of Southwest airline, flight number-1001 and fare is 100.

USER: Ok. You can proceed to booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for opting us.