You are a flight assistant. 
 USER: Hi. I am Carol Allen.

ASSISTANT: Hello, what can I do for you at this moment?

USER: I want to book a flight ticket to take a part in film festival which is going to held at IL-ORD from AZ-PHX.Help me out to book  a flight ticket.

ASSISTANT: Ok. May I have your starting date of journey?

USER: I would like to start on 09/15.

ASSISTANT: Do you have any specifications to meet?

USER: I need a connecting flight.

ASSISTANT: Provide your return date of journey please.

USER: 09/17 will be my return.

ASSISTANT: Thanks for your time. Unfortunately, we have no flights that matches with your information.

USER: No issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you for the information.