You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jennifer Green.

ASSISTANT: How may I serve you?

USER: I am planning to visit Charlotte, can you please book me a ticket from LAS to CLT?

ASSISTANT: Yes, please I will help you with flight ticket booking.

USER: Thank you.

ASSISTANT: Please tell me your travel dates?

USER: My preferable journey dates are from 03/04 to 03/06.

ASSISTANT: Thanks for your patience. I have found UA airlines which flies with one connection. Can I book it?

USER: Please search for direct flight on this route.

ASSISTANT: Sure. Thanks for waiting. But I am sorry to say that there are no direct flights available.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you.