You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you at this minute?

USER: I want to meet my grandparents to celebrate my birthday, could you book my ticket from PHL to ORD?

ASSISTANT: Ok, I am here to help you with that. Can I know your planned trip dates?

USER: My itinerary dates are Apr 15 and 17.

ASSISTANT: May I know your good name?

USER: Stephen Carter here.

ASSISTANT: Is there any other requirements?

USER: I have no other preferences for my journey.

ASSISTANT: The Spirit airlines are providing a flight having a connection limit 1 and the ticket fare of 200. Can I proceed with the ticket booking?

USER: Book my ticket.

ASSISTANT: Your flight ticket is confirmed in an economy class and the flight number 1023.

USER: Thank you.

ASSISTANT: Thank you for approaching us. Have a safe journey.