You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Rebecca Harris.

ASSISTANT: Rebecca Harris, how can I render you today?

USER: Can you please book  a flight ticket from ATL to DTW?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: Thank you for considering my request. My travel dates are June 5th and June 7th.

ASSISTANT: Ok, hold on for a moment. Let me check the best available flight for you.

USER: Sure, take your own time and check me a best flight for my journey.

ASSISTANT: I found a flight for you with Delta Airlines and it costs you 100. Shall I proceed to reserve a seat in this direct flight?

USER: If the flight which you have mentioned departures in the morning go ahead with the booking.

ASSISTANT: Sorry Rebecca Harris, there are no flights available in the morning time on that route.

USER: It's ok, anyways thank you for the information.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.