You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: This is Nicholas Hill from Dallas.

ASSISTANT: Ok.

USER: I am planning to attend film festival with my colleagues in Oakland CA-OAK, could you please aid me in booking a flight ticket from Dallas & Fort Worth TX-DFW?

ASSISTANT: Sure, I will help you. When did you scheduled to travel?

USER: I would like to depart on 06/11 and return on 06/13.

ASSISTANT: Do you have any other requirements?

USER: I need a flag stop in between journey. I can spend upto 1000.

ASSISTANT: We found a direct flight with economy class of price 100. Shall I proceed to book 1017 flight?

USER: You can proceed with the booking.

ASSISTANT: Your seat has been confirmed with Frontier airline.

USER: Thank you for your kind help.

ASSISTANT: Thank you for choosing us.