You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Andrew Thompson here.

ASSISTANT: How can I aid you today?

USER: I am looking for a direct flight to my journey because of some urgency, can you please help me out with booking of a flight ticket from Detroit to Houston?

ASSISTANT: Sure, I can help you with that. May I know your respective origin and destination airport codes please?

USER: Thank you. I will prefer DTW and HOU as my origin and destination airport codes respectively.

ASSISTANT: Ok, can you please share your journey dates?

USER: I am planning to leave my location on 12/06 and please book my return ticket also on 12/08.

ASSISTANT: Ok, please wait for a while.

USER: Ok, take your time but try to bring a best flight in my route.

ASSISTANT: Delta airlines is having a direct flight on that route with travel charge of 200, shall I proceed for booking?

USER: That's perfect, I am ok with this. You can proceed with booking.

ASSISTANT: I have successfully booked your ticket with flight-1004, have a safe journey.

USER: Thank you for your great assistance in booking of my ticket.

ASSISTANT: Thank you for choosing us.

USER: Welcome.