You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Dennis Johnson want to visit ORD, can you book a ticket from PHL?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: Sure, my travelling dates will be 07/11 and 07/13.

ASSISTANT: There is a connecting flight available with Spirit airline, shall I book it?

USER: Ok, proceed with my booking.

ASSISTANT: Your booking is done with flight number 1014. Happy journey.

USER: Thank you.

ASSISTANT: You are welcome, have a nice day.