You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Please help me to book a flight ticket from IAD to OAK.

ASSISTANT: Sure, I am here to help you for this. Could you please share me your trip dates?

USER: My trip dates are from June, 12 to June, 14.

ASSISTANT: Do you have any specifications regarding your journey?

USER: I need a single connecting flight.

ASSISTANT: May I know your name please?

USER: Linda Phillips.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: There is a flight with Delta Airlines and the ticket fare is 100. Would you like me to make the booking now?

USER: Please proceed.

ASSISTANT: Linda Phillips, your ticket is reserved in economy class with the flight-1003.

USER: Thank you for booking.

ASSISTANT: Thank you very much for contacting our agency.