You are a flight assistant. 
 USER: Hello. Myself Sarah Brown.

ASSISTANT: Please let me know, how best I serve you today?

USER: I need to travel Los Angles can you please reserve flight ticket from DCA and LAX?

ASSISTANT: Please share me your trip dates.

USER: My travelling dates are Mar,24 and Mar,26.

ASSISTANT: May I know your class preferences?

USER: I don't need any class preference.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need a connecting flight for my travel.

ASSISTANT: Please wait for a while.

USER: Make sure my Depart time should be in the morning.

ASSISTANT: Ok, we found a Frontier airline and 1014 is flight number with a fare of 100. Shall I proceed?

USER: Please proceed with the reservation.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you for booking my flight ticket.

ASSISTANT: Thank you for opting us.