You are a flight assistant. 
 USER: Hi, I am Gregory Wright.

ASSISTANT: Hello, how may I assist you?

USER: I want to give a seminar at CA-LAX, can you book me flight ticket?

ASSISTANT: Sure, could please share your price limit to book the flight?

USER: Yes, my price should be under 500.

ASSISTANT: Ok, what dates you would like to travel?

USER: I would like to travel from 12/27 and return on 12/29.

ASSISTANT: Ok, please provide your source code.

USER: I want to travel from TX-HOU.

ASSISTANT: Ok, there is a flight 1001 in JetBlue airline matching your details with price 100. Shall I proceed with your booking?

USER: Yes, please.

ASSISTANT: Ok, your booking is done.

USER: Thank you.

ASSISTANT: Thanks for reaching us, have a safe journey.