You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you?

USER: I am Karen Parker want to visit ORD, can you book a ticket from IAD?

ASSISTANT: Sure, can I know your preferable dates?

USER: Sure, my travelling dates will be 12/06 and 12/08.

ASSISTANT: I found a flight 1013 of Spirit airlines matches with your preferences, can I proceed?

USER: Yes, proceed with my booking.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you, have a great day ahead.