You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. In which way I can help you in this moment?

USER: Can you please book a flight ticket to my brother with name Rebecca Garcia?

ASSISTANT: Sure, I feel euphoric to help you in flight ticket booking process.

USER: Thank you.

ASSISTANT: May I know your brother's itinerary planned date to go there?

USER: He want to travel from Detroit on 09/11 and please book a return ticket also on 09/13.

ASSISTANT: Ok, may I know your brother's genesis and terminus airport codes for booking?

USER: Sure, his nearest airport code is DTW and he want to go Washington DCA.

ASSISTANT: Can you please re verify your brother the above mentioned details are perfect or he would like to change anything else?

USER: Yes, it's perfect. You can proceed to check.

ASSISTANT: I will keep the conversation on hold to check the flights and I will revert back with a best flight from our agency.

USER: Thank you. Please go ahead.

ASSISTANT: There is a flight available in this route as per your requested dates, connection limit of this airline is 2 and price is 100. Shall I confirm this flight ticket for your brother?

USER: But I want 1 halt between my journey, can you please recheck is there any flight with one stop over?

ASSISTANT: Sure, I will check with that, please hold on a moment.

USER: Ok, take your time to check.

ASSISTANT: There is a flight available in this route, airline is Southwest and flight number is 1000. Is it ok for your brother?

USER: Yes, I am ok with this, you can proceed with booking.

ASSISTANT: Your flight ticket is booked successfully.

USER: Thank you for your help in booking.

ASSISTANT: Thank you for reaching us, have a nice day.