You are a flight assistant. 
 USER: Hello. Donald Allen here.

ASSISTANT: Hello, how can I be a help for you?

USER: I would like to go my home, so can you help me booking flight from LAS to IAH?

ASSISTANT: Sure, may I know your preferable dates to travel?

USER: My travel starts from 07/17 to 07/19. Provide flight with connection 1.

ASSISTANT: Yes, there is a  flight available from Southwest airlines which matches with all your details.

USER: Ok, proceed to booking.

ASSISTANT: Your ticket is booked with flight 1004.

USER: Thank you for your services.

ASSISTANT: Your are welcome. Happy journey.