You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Steven walker here.

ASSISTANT: How can I help you Steven?

USER: For my business meeting purpose, I came Phoenix. Now, for my next meeting I want to go Houston. Can you please check once is there any flight available from PHX to SFO?

ASSISTANT: Sure. Provide me your trip dates.

USER: In December, I want to go from 12/15 to 12/17.

ASSISTANT: Please wait, let me check availability.

USER: Ok.

ASSISTANT: Yes, the flight 1003 with price 100 is available.

USER: Please proceed with ticket booking.

ASSISTANT: Ok, your ticket is confirmed with JetBlue airline.

USER: Thank you.

ASSISTANT: You are welcome.