You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: Can you guide me in finding a best flight from Las Vegas?

ASSISTANT: Sure, I will help you about that. Can you please provide your planned dates of journey?

USER: My trip dates will be May 9th to May 11th.

ASSISTANT: Can you please provide your destination airport which is nearest for your to board?

USER: My nearest source airport is LAS, my destination airport is IAH.

ASSISTANT: Do you have any limits on number of connections for this trip?

USER: Yes, usually I prefer to fly in a connecting flight.

ASSISTANT: Is there any other specification for your journey to met with can you please provide it?

USER: No, please go with the above details.

ASSISTANT: Can you please let me know your name for booking purpose?

USER: Please confirm my flight ticket with the name Debra Nelson.

ASSISTANT: There is a flight which can travel to your desired region with a single stop over having an air fare of 200 which is provided by United Airlines. Shall I proceed with the booking?

USER: Its a perfect flight, you can proceed.

ASSISTANT: I have reserved your flight ticket with the flight 1021 in an economy class which depart from your location in the afternoon.

USER: Thank you.

ASSISTANT: You are welcome, thank you for employing our service. Have a safe journey.