You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Carolyn Collins.

ASSISTANT: Ok.

USER: I need to attend an interview in HQ software at Detroit, could you please help me in booking from PHX to DFW?

ASSISTANT: Sure, may I know your planned journey dates?

USER: My planned trip dates are from 03/16 to 03/18.

ASSISTANT: Ok, please wait for a moment.

USER: I need a connecting flight, within the fare of 200. Ok.

ASSISTANT: Sorry, there are no flights found with your given dates.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you.