You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you at this moment?

USER: Please help me in booking flight ticket from IAD to HOU to meet my family.

ASSISTANT: Ok, on which dates would you like to travel?

USER: My trip dates are June 14 to June 16.

ASSISTANT: Ok, do you need a lay by in between the journey?

USER: I prefer to travel in connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your good name please?

USER: Nicholas Wright.

ASSISTANT: We found a Southwest airlines with fare of 200 and a lay by in between the journey matches your schedule.

USER: You can proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1026.

USER: Thank you for booking.

ASSISTANT: Thank  you for reaching us.