You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you help me to book a flight ticket from LGA to SEA?

ASSISTANT: Sure, I am happy to help you. Can you please let me know your travelling dates?

USER: My trip dates are 18 to 20 of Mar.

ASSISTANT: Do you prefer any stopover in between journey?

USER: I need a connecting flight.

ASSISTANT: Is there any other specifications for you?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Dennis Hall.

ASSISTANT: We found a connecting flight in Southwest airline with a fare of 200 which departs at 16:00 and return at 9:00. Shall I proceed for booking?

USER: Please proceed.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1020.

USER: Thanks for helping me.

ASSISTANT: Thank you for choosing us.