You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I help you?

USER: I want to book a ticket to PHX to attend a meeting, can you please book a ticket from DFW?

ASSISTANT: Sure. Please provide your travelling dates?

USER: My planned dates are from 03/18 to 03/20. I need a direct flight to reach my destination.

ASSISTANT: Ok. No flight found with your requirement.

USER: Ok, thank you for the information.

ASSISTANT: Please let me know your name?

USER: I am Shirley Miller.

ASSISTANT: Thanks. Have a nice day!.