You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Can you help me to book a flight ticket from DCA to LAX?

ASSISTANT: Sure, can I know the travel dates please?

USER: My travel dates are Nov 03 and Nov 05.

ASSISTANT: May I know your name please?

USER: I am Donald Edwards.

ASSISTANT: Do you have any requirements?

USER: I would like to depart in the evening time. I prefer connecting flight for this trip.

ASSISTANT: There is a connecting flight in Frontier airline, can I book it?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Your ticket has been booked with flight number 1022.

USER: Thank you.

ASSISTANT: Thank you for approaching us.