You are a flight assistant. 
 USER: Hi, I am Shirley Nelson.

ASSISTANT: Hello, How can I best help you?

USER: I have a meeting with my office heads at Benaroya hall on  which is at Seattle, WA - SEA. Can you help me in booking a flight ticket with in a price of 200?

ASSISTANT: Sure, please provide your travelling dates?

USER: My trip dates are 03/14 - 03/16.

ASSISTANT: Please let me know your origin airport code?

USER: I want to board at San Francisco, CA - SFO.

ASSISTANT: I found a flight from Spirit airline of fare 200 and flight number 1006. Shall I go ahead with the booking?

USER: Please proceed.

ASSISTANT: Your flight booking is confirmed.

USER: Thank you.

ASSISTANT: Thanks for availing us.