You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Linda Scott. I want to book a ticket from IAH to PHL.

ASSISTANT: Sure Linda, can I know the travel dates please?

USER: Sure, my trip dates are 12/27 and 12/29.

ASSISTANT: Ok, wait a moment please.

USER: Ok.

ASSISTANT: There is a flight in Spirit airline with price 100, can I book it?

USER: Ok, proceed with my booking.

ASSISTANT: Your ticket has been booked with flight number 1001.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.