You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I support you?

USER: I am Brian Perez. Please provide ticket from Phoenix, AZ-PHX to Atlanta, GA-ATL.

ASSISTANT: Sure, please provide your travel dates?

USER: Depart on 12/13 and return by 12/15.

ASSISTANT: Do you have any other requirements?

USER: Price limit 5000. Connections limit 0.

ASSISTANT: Ok, please wait a while. I will let you know.

USER: Sue.

ASSISTANT: Thanks for your valuable time. Unfortunately there are no flights found with your given details.

USER: Thanks for the help.

ASSISTANT: Thank you for contacting us.