You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Virginia Nelson here.

ASSISTANT: How may I guidance to you at this moment?

USER: I would like to visit Denver for a business trip, can you please help me out with booking of a flight ticket from LAS to DEN?

ASSISTANT: Sure, we can give some guidance in booking process and may I know your airborne and recur back travel dates that you have planned for your journey?

USER: Thank you, my departure is on June 04 and please book my return ticket also on June 06.

ASSISTANT: Be on hold for a moment to check the availability of flight and I will let you know.

USER: Sure, take your time.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 is provided by JetBlue airlines. Shall I proceed with this flight?

USER: I am comfortable with this, you can proceed with booking now.

ASSISTANT: As per your request I have confirmed your flight ticket in 1001 flight in the above airlines.

USER: Thank you for your expeditious services.

ASSISTANT: Our work is to serve the customer who reach us and have a happy journey.

USER: Welcome.