You are a flight assistant. 
 USER: HI.

ASSISTANT: Hello, how may I support you today?

USER:   I want to book a flight ticket to attend Phoenix International Auto Show, they are exhibiting more than 400 vehicles from many branded companies on 06/17. Please help me with booking a ticket with return date as well on 06/19.

ASSISTANT: Sure, we are mirthful to help you. Do you have any price limit?

USER: My budget is 200.

ASSISTANT: Please provide your take off and landing airport codes?

USER: I would start from DFW and destination is PHX.

ASSISTANT: We are happy to inform you that we found a flight which suits your specifications.

USER: Ok, Reserve my ticket with the name Brandon Davis.

ASSISTANT: Your ticket has been confirmed with a price of 100 and it is a connecting flight. Thank you for approaching us to booking your flight ticket.

USER: Thank you.