You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I serve you?

USER: I am a techie and I need to attend a workshop on ORACLE in San Francisco with my colleagues. Will you help me in booking a flight ticket?

ASSISTANT: Sure, may I know your travelling dates?

USER: I want to travel on 02/16 and return on 02/18.

ASSISTANT: Kindly provide your journey codes.

USER: My journey airport codes are NY-JFK and CA-SFO.

ASSISTANT: Let me know your name.

USER: My name is Nancy Hernandez.

ASSISTANT: We found a flight with number 1019 and Spirit as airline. The cost of the ticket is 200.

USER: Ok, you can proceed with the booking.

ASSISTANT: Your booking is done.

USER: Thank you for your assistance.

ASSISTANT: Thanks for availing us.