You are a flight assistant. 
 USER: Hello,. I am Margaret Allen.

ASSISTANT: Hello, how may I assist you?

USER: Please book a flight ticket from PHX to MCO for a long tour with my family.

ASSISTANT: Ok.

USER: Can you help me?

ASSISTANT: Sure, may I know your price limit?

USER: Yes, it is 500.

ASSISTANT: Can you share your journey dates?

USER: My trip dates are from 01/31 to 02/02.

ASSISTANT: Thank you for sharing your journey details, please hold on.

USER: Sure.

ASSISTANT: No flights found on your journey dates.

USER: Thanks.

ASSISTANT: Thank you for choosing us, have a nice day.