You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Please help me to book a flight ticket from PHL to MCO.

ASSISTANT: Sure, could you help me with your travelling dates?

USER: My travel dates are from Nov, 29 to Dec, 01.

ASSISTANT: May I know your airline preference?

USER: I need a normal-cost airlines to travel.

ASSISTANT: Do you have any connection limit?

USER: No.

ASSISTANT: May I know your other preference?

USER: I prefer economy class.

ASSISTANT: Sure, wait a minute.

USER: Ok.

ASSISTANT: There is a flight on American airline, flight number 1029 with the fare of 100. Can I know your name for booking?

USER: Sure, I am Elizabeth Green.

ASSISTANT: Your ticket has been booked.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.