You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, do you need any help from us?

USER: Please make a reservation with the name of Dennis Johnson to Houston.

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: I want to depart on Dec 14 and return on Dec 16.

ASSISTANT: Ok, may I know your location airport codes?

USER: My journey airport codes are PHX and HOU.

ASSISTANT: The economy class with flight number 1020 of Spirit airline is available having connection as 1, is it ok for you?

USER: Ok, proceed with the booking.

ASSISTANT: Ok, your reservation is confirmed.

USER: Thank you.

ASSISTANT: You are welcome, have a great day.