You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Please help me to book a flight ticket from HOU to LAS.

ASSISTANT: Sure, I can help you. May I know your name?

USER: John Hernandez.

ASSISTANT: Thank you. Please help me with your travel dates.

USER: I will start on July, 6 and return on July, 8.

ASSISTANT: Noted. Would you like to travel in a connecting flight or a direct flight?

USER: I prefer to travel in connecting flight.

ASSISTANT: Noted. Do you have any other concerns?

USER: No, thanks.

ASSISTANT: Direct flight is available with Hawaiian Airlines and the ticket fare is 500 only in business class. Flight departs at 5:00 hours and arrives at 14:00 hours. Shall I book the ticket for you?

USER: Please book.

ASSISTANT: Your ticket is booked successfully and your flight number is 1027.

USER: Thank you.

ASSISTANT: You are most welcome.