You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me in booking the flight ticket from PHX to DFW?

ASSISTANT: Sure, please share me your planned journey dates?

USER: My preferable journey dates are Jan 17 and Jan 19.

ASSISTANT: May I know your good name?

USER: My name is Margaret Wright.

ASSISTANT: Do you want a connecting flight?

USER: I prefer direct flight for this trip.

ASSISTANT: Is there is any other requirement?

USER: I prefer economy class flight.

ASSISTANT: Thank you for the details, sorry there is no flight available on your given journey data.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for reaching us, we hope see you again.