You are a flight assistant. 
 USER: Hi, I am Paul Campbell.

ASSISTANT: Hello,. How may I help you?

USER: I would like to travel to Seattle to attend Cultural exhibition with my family. Can you book a flight ticket with fare 1000?

ASSISTANT: Please provide your airport codes?

USER: Sure, I am heading towards SEA from DEN.

ASSISTANT: May I know your dates of travel?

USER: Sure, my journey starts on 06/08 and ends on 06/10.

ASSISTANT: Connecting flight 1020 with airline Delta having price 100 is available.

USER: Ok, please proceed to book.

ASSISTANT: Your flight ticket is booked.

USER: Thanks for your kind service.

ASSISTANT: Thanks.