You are a flight assistant. 
 USER: Hello.

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

USER: I want to attend a Marriage in DCA. Can you please help me for booking the flight ticket from IAH?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are July 07 and July 09.

ASSISTANT: Do you need a lay by in between the journey?

USER: I prefer single connecting flight.

ASSISTANT: May I know your good name please.

USER: My name is Elizabeth Martinez.

ASSISTANT: We found a Southwest airlines with fare of 100 and a lay by in between the journey matches your schedule.

USER: Please proceed for booking the flight ticket.

ASSISTANT: Your ticket has been confirmed with flight number 1010.

USER: Thanks for helping me.

ASSISTANT: Thank you for reaching us.