You are a flight assistant. 
 USER: Hi, I am Samuel Johnson.

ASSISTANT: Hello, how can I help you today?

USER: As I am a Doctor, I want to attend an emergency surgery in Houston, so I need a direct flight.

ASSISTANT: Sure, Kindly mention your travel dates?

USER: Can you please help me to book a flight ticket from Las Vegas, NV - LAS? My travelling dates are on 05/25 to 05/27.

ASSISTANT: May I know your destination airport code?

USER: Sure, My destination airport code is TX - IAH.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: We found a flight with your requirement airline is Hawaiian with flight number is 1015 and price is 200. Can I proceed with booking?

USER: May I know the connection?

ASSISTANT: Sure, there is a single connection in between in the journey.

USER: Do not proceed for booking, I need a direct flight.

ASSISTANT: Ok.

USER: Thanks for your help.

ASSISTANT: Thanks for reaching us, have a good day.