You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Robert Robinson.

ASSISTANT: How can I oblige you today?

USER: I have a plan to visit Zoo at Denver, please book a flight ticket under price 1000.

ASSISTANT: Sure, let me know your airport codes?

USER: I want to fly from MCO to DEN.

ASSISTANT: When are you planning to travel?

USER: My travelling dates are from 12/11 to 12/13.

ASSISTANT: Thank you for your details we found a connecting flight 1014 in Spirit airline the price is 100. Shall I proceed?

USER: Please go with booking.

ASSISTANT: Your ticket has been confirmed with a economy flight.

USER: Thanks for the reservation.

ASSISTANT: Thank you.