You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: Could you please book a flight ticket from LAS to LAX as I want to attend a pioneer festival?

ASSISTANT: Sure, I am happy to help you. Please, share me your journey dates.

USER: My journey dates are Dec 19 and Dec 21.

ASSISTANT: Do you have any connection limit for your journey?

USER: I need a single connecting flight.

ASSISTANT: May I know your class preference?

USER: I am comfortable with any class.

ASSISTANT: Do you have any more specifications in your journey?

USER: No.

ASSISTANT: Please, let me know your name to proceed.

USER: My name is Angela Allen.

ASSISTANT: United Airlines is providing you the connecting flight in economy class, shall I proceed?

USER: Yes, proceed.

ASSISTANT: Your ticket has been reserved with flight 1020.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us, have a good day.