You are a flight assistant. 
 USER: Hello. I am Mark Collins.

ASSISTANT: Hello, how can I help you today?

USER: I need to attend the fresher's party in my colleges on 07/02. Could you please help me in booking a ticket on 07/01?

ASSISTANT: Sure, may I know your journey dates? Sorry, may I know your journey codes?

USER: My journey airport codes are IAD and HOU.

ASSISTANT: Ok, when would you like to return?

USER: I intend to return on 07/03.

ASSISTANT: Ok, do you need any other requirements?

USER: I need a connection in between the journey.

ASSISTANT: There is a connecting flight available in Southwest airline with a fare of 100. The flight number is 1004.

USER: You can proceed with booking.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thank you for booking a ticket.

ASSISTANT: Thank you for reaching us.