You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Could you please help me to book a flight ticket from LAS to DFW?

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are Aug 19 and Aug 21.

ASSISTANT: Is there any preference?

USER: I need a single connecting flight.

ASSISTANT: Found ticket with American airlines for price 100 having flight number 1016. Shall I book a ticket?

USER: Ok, proceed.

ASSISTANT: Can I know your name?

USER: I am Amanda Anderson.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.