You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jerry King here.

ASSISTANT: How may I assist you?

USER: I will be booking a flight from San Francisco to Denver for meeting my teacher.

ASSISTANT: Ok.

USER: My travelling dates will be from 02/07 to 02/09.

ASSISTANT: May I know your source and destination?

USER: My airport codes of origin is SFO and I will be departing from DEN.

ASSISTANT: Thank you, please wait for a moment.

USER: Sure, take your time. Make sure if the price limit is less than 200.

ASSISTANT: Flight-1012 is available for you, shall I proceed?

USER: May I know the connection limit?

ASSISTANT: It is with 2 connections.

USER: Sorry, I only prefer single connection.Thank you for your assistance.

ASSISTANT: Flight-1014 of UA airlines is available for you. It is with 1 connection limit.

USER: Ok, proceed with my booking.

ASSISTANT: Your ticket has been booked, have a safe journey.

USER: Thank you for your service.

ASSISTANT: Welcome.