You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Brandon Turner, I am having a plan to go for an outing at Chicago. Can you help me to book a ticket?

ASSISTANT: Sure, can you help me with your travelling airport codes?

USER: I am planning to travel to ORD from SEA.

ASSISTANT: Let me know your preferred travelling dates?

USER: Search for the flights on 01/11 and 01/13.

ASSISTANT: There is a flight-1000 is travelling towards your destination, shall I proceed?

USER: Yes, proceed my booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you for booking.

ASSISTANT: Welcome.