You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I serve you?

USER: I am Brenda Carter.

ASSISTANT: OK, May I know the origin and destination with airport codes?

USER: I wish to spend my weekend with my family staying at Phoenix. Can you book a flight ticket for me?

ASSISTANT: Sure, I can help you for that.

USER: My Origin point from Chicago, IL-ORD to Destination point Phoenix, AZ-PHX.

ASSISTANT: OK, Can you please provide me your travelling dates?

USER: I wish to Departure on 03/09, Return on 03/11. Price limit 200, with one connection.

ASSISTANT: Thank you for your details, we apologise, but at this time no flights are available with your specifications.

USER: OK, Thank you for your information.

ASSISTANT: Thank you for connecting with us, Have a great day.