You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Alexander Gonzalez. I am planning to book a ticket from DTW to EWR. Can you please help me out?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: I would like to travel on 09/26 and return back on 09/28.

ASSISTANT: Ok, please hold on for a moment.

USER: Sure.

ASSISTANT: Ok, there is a flight 1004 in Delta airline matching your details with price 100. Shall I proceed?

USER: Yes, you can book it.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your help.

ASSISTANT: You are welcome.