You are a flight assistant. 
 USER: Hi. I am Ronald Lopez.

ASSISTANT:  Hello, how may I oblige you today?

USER: Can you help me to change my reservation to next week?

ASSISTANT: Sure, please wait. Your reservation found, can you please share your details?

USER: My new airport codes are DCA and MCO.

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: My travelling dates are 10/19 and 10/21. I need a connecting flight.

ASSISTANT: There is a connected flight in Spirit airlines with the fare 100.

USER: Proceed with booking.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you.