You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Would you please help me in booking a ticket from DEN to OAK.

ASSISTANT: Ok, please can I know the dates of your journey to book a ticket?

USER: My itinerary travel dates are as follows May 21 and May 23.

ASSISTANT: Ok, please can I know your name to book?

USER: Linda Lopez.

ASSISTANT: Ok, can I know your specification you desire?

USER: I would like to board a single connecting flight.

ASSISTANT: Do you have any other specification?

USER: No.

ASSISTANT: There is a flight ticket available for a connecting flight and the class is economy. The airfare is 100, can I book a ticket?

USER: Please proceed for booking.

ASSISTANT: Ok, the flight ticket is booked and the airlines is Frontier.

USER: Thank you very much.

ASSISTANT: Thank you for availing our service.