You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Kevin Lopez here. I would like to visit Phoenix, can you please reserve my ticket from DEN to PHX?

ASSISTANT: May I know your desired travel dates please?

USER: Sure, my preferable dates of journey is from 07/23 to 07/25. Please make sure that the price limit is 200.

ASSISTANT: There is a flight with connection limit 1 and fare 100, is it ok for you?

USER: Ok, please proceed with this ticket booking.

ASSISTANT: Your ticket is booked, flight number 1020.

USER: Thank you for your help in reserving my ticket.

ASSISTANT: Thank you for opting us.