You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

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

ASSISTANT: Sure, may I know your travelling dates?

USER: I want to fly in the flight on Nov 17 and Nov 19.

ASSISTANT: Do you need any specification?

USER: I am looking for a direct flight.

ASSISTANT: Any other specifications needed?

USER: No.

ASSISTANT: On which name should I reserve the flight ticket?

USER: Samantha Harris.

ASSISTANT: Please wait a moment.

USER: Ok, take your time.

ASSISTANT: There is a direct flight with the price 200 in United Airlines, can I proceed with the reservation?

USER: Proceed to booking.

ASSISTANT: Your ticket has been reserved with the flight number 1006 in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching our service.