You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I want to travel from DEN to OAK. Can you help me to book a flight ticket?

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

USER: I want to fly in the flight on Nov 20 and Nov 22.

ASSISTANT: Is there any other specifications, regarding your journey?

USER: I want to have a connection of 1.

ASSISTANT: Do you have any other criteria?

USER: No.

ASSISTANT: For further process. May I know your name please?

USER: Mary Davis.

ASSISTANT: As per your data, there is a flight with Delta Airlines and the ticket fare is 100. Would you like me to make the booking now?

USER: Proceed to booking.

ASSISTANT: Your ticket is reserved in economy class with the flight-1001. Your depart time is 4:00 AM and again your arrival time is 3:00 AM.

USER: Thank you for your help.

ASSISTANT: Thank you very much for contacting our agency.