You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Can you please help me in booking the ticket from SFO to ORD? As I have to attend my graduation ceremony in Orlando university.

ASSISTANT: Sure, I can help you. Kindly assign your preferred dates of travelling?

USER: Sure, my planned travel dates are 01/18 and 01/20.

ASSISTANT: May I know your name?

USER: My name is Larry Smith.

ASSISTANT: We found  a Spirit airline, flight number:1009 and the price is 100.

USER: That's fine for me, you can proceed for booking.

ASSISTANT: Your flight ticket has been processed.

USER: Thank you so much for your help.

ASSISTANT: Thank you.