You are a flight assistant. 
 USER: Hello. Samuel White here.

ASSISTANT: Hello, how may I help you?

USER: I would like to meet my brother at Dallas, please help me in booking a ticket from DCA to DFW.

ASSISTANT: Sure, can I know your travelling dates?

USER: My planned travel dates are on Apr 08 and Apr 10.

ASSISTANT: Do you have any particular time for departing and returning?

USER: I would like to return in the afternoon.

ASSISTANT: Would you like to prefer direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: Which class do you prefer?

USER: Any class is comfortable for me.

ASSISTANT: We found Hawaiian airline with price 200 and economy class and airline number is 1026 with arrival time is 15 PM and departure time is 07 AM, Shall I proceed for booking?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.