You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me in flight ticket booking process from IAH to LAS?

ASSISTANT: Sure, when do you want to travel?

USER: Thank you for your response, I want to take off on Sept 15 and book my return ticket also on Sept 17.

ASSISTANT: Ok, Do you have any class preference?

USER: I want to travel in economy class flight.

ASSISTANT: Ok, Do you prefer direct flight or connected flight?

USER: I need 1 break in between my journey.

ASSISTANT: Ok, please mention your depart and return timings.

USER: I am ok with any time.

ASSISTANT: Ok, May I know your good name?

USER: Sure, my name is Susan Martin.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting, we found a connecting flight in 1004 Spirit Airlines with a fare of 200.

USER: Please confirm this flight ticket for me.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.