You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you?

USER: I am Kimberly Evans, I want to book a flight ticket to attend my sister's marriage. Please help me out.

ASSISTANT: Sure, Can I have your travel dates please?

USER: My travelling dates are from 05/20 to 05/22.

ASSISTANT: Can I know your journey points please?

USER: I want to fly from PHX to DCA.

ASSISTANT: Do you need any connection in between?

USER: I need a direct flight.

ASSISTANT: Sorry there is no flights on your requested dates.

USER: Ok, no issues.

ASSISTANT: Thank you.

USER: Thank you.