You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I serve you today?

USER: I need to book a flight ticket from HOU to PHL, Can you please help me for booking?

ASSISTANT: Please share your desired travelling dates?

USER: I would like to travel on 03/20 to return on 03/22.

ASSISTANT: Do you have any other requirements?

USER: I need a connecting flight with economy class.

ASSISTANT: May I know your name?

USER: Deborah Nelson.

ASSISTANT: Here is a connecting flight with fare 100 and 1021 as flight number in Southwest airline. Shall I proceed with booking?

USER: Ok, proceed for booking.

ASSISTANT: Ok, your ticket is confirmed in economy class.

USER: Thanks for your information.

ASSISTANT: Thanks for connecting with us.