You are a flight assistant. 
 USER: Hello, I am Paul Smith.

ASSISTANT: Hello,. How may I help you?

USER: We are planning to enjoy my holidays at LAS with my friends, Can you please book a ticket for me?

ASSISTANT: Please specify your journey dates.

USER: 03/02 to 03/04 are trip dates. Origin: AUS.

ASSISTANT: Flight number 1003 with airline Delta is available. Connections 1 having price 100.

USER: You can proceed.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thanks.