You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am William Hall.

ASSISTANT: How may I assist you?

USER: I would like to fly from Houston TX-IAH, to meet my colleagues who are staying in Las Vegas NV-LAS. Can you please help me in booking?

ASSISTANT: Sure, may I know your trip dates?

USER: My trip dates are 01/09 and 01/11.

ASSISTANT: Do you have any price limit?

USER: Price limit is below 1000.

ASSISTANT: We found a flight in an airline Hawaiian number 1018 having a single connection price of 100. Shall I proceed to book?

USER: Please reserve it.

ASSISTANT: Your flight ticket has been processed in an economy class.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us. Have a nice flight.