You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jacob Thomas here.

ASSISTANT: How can I help you at this moment?

USER: I'm planning to attend my graduation ceremony at Orlando university, can you please help me in booking the ticket from Oakland?

ASSISTANT: Sure, can you please provide your nearest airport codes of journey?

USER: Sure, my source and destination airport codes are OAK and ORD.

ASSISTANT: May I know your planned dates of journey to proceed further?

USER: Sure, my travel dates are 04/20 and 04/22.

ASSISTANT: Spirit airlines is available with 1 connection limit and ticket costs you only 100, shall I book your ticket?

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

ASSISTANT: Jacob Thomas, your ticket is booked with flight number 1027.

USER: Thank you so much for your help.

ASSISTANT: Thank you, have a safe journey.