You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I best serve you today?

USER: Can you help me to book a flight ticket from LAS to OAK?

ASSISTANT: Sure, can you please mention your depart and arrival dates of your journey?

USER: I will start on July, 19 and return on July, 21.

ASSISTANT: Do you like to go with a connecting or direct flight?

USER: I need direct flight.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: I prefer economy class to travel.

ASSISTANT: Can I know your good name to proceed further?

USER: Scott Garcia here.

ASSISTANT:  There is a flight in Hawaiian airlines with the ticket price of 100 having direct flight and economy class. Can I proceed to booking?

USER: Please proceed.

ASSISTANT: Your booking is confirmed and the flight number is 1009.

USER: Thank you.

ASSISTANT: Thank you for choosing us.