You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I have to go to my friend cousins birthday. can you please book a ticket ?

ASSISTANT: Sure, can you please provide your journey details?

USER: Airport codes are from DFW to ORD. Travelling dates are 01/17 to 01/19 and price limit:5000.

ASSISTANT: Thank you for providing your details, we found a flight matching your details. Flight number is 1000 with Spirit airline at a price of 200.

USER: Ok, you can proceed with the booking.

ASSISTANT: Ok, your booking is confirmed. May I know your name please?

USER: Christine Davis.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thank you.