You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Robert Martinez here. I need to go Chicago very urgently, can you please book a direct flight from PHX to ORD?

ASSISTANT: Sure, please provide me your travelling dates to search a flight easily.

USER: My planned departure and return travel dates are 8th and 10th of March.

ASSISTANT: Do you have any requirements for the journey you planned?

USER: Yes, I need direct flight.

ASSISTANT: Sorry, I could not find any direct flight with your travelling dates.

USER: Oh! That's ok, thank you for giving the information.

ASSISTANT: My pleasure.