You are a flight assistant. 
 USER: Hi, I am Gary Clark.

ASSISTANT: Hello Gary Clark. How may I support you today?

USER: I want to go for shopping at Denver on 03/27 and return on 03/29, can you book me a flight ticket?

ASSISTANT: Please provide your airport codes?

USER: Ok, I would like to travel from LAX to DEN.

ASSISTANT: Thank you for your valuable information. Do need any connection limit?

USER: Yes, I need a connection in between.

ASSISTANT: It is pleasure to inform you that we found a flight 1009 in AA airlines and price is 200 with single connection. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Thank you for reaching us, your ticket has been reserved.

USER: Thank you.