You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Williams Allen. I am planning to visit a Times Square in Austin, so please book a flight ticket from LAS to AUS.

ASSISTANT: Ok, please can I know the dates of your reservation to book a ticket?

USER: My trip dates are Dec 10 to Dec 12.

ASSISTANT: Ok, please can I know the class you prefer for this journey?

USER: I am ok in any class.

ASSISTANT: Ok, please let me know the departure and arrival timing you planned.

USER: I need a connecting flight which return in evening.

ASSISTANT: Is there anything else I need to check for?

USER: No.

ASSISTANT: There is a flight ticket available with 1 connection limit for the airfare 200 and the airlines is JetBlue. Can I book the flight 1021?

USER: You can reserve it.

ASSISTANT: Ok, the flight ticket is booked for the economy class flight.

USER: Thank you.

ASSISTANT: The departure time is 5:00AM and return time is 2:00AM, thank you for choosing our agency.