You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I provide assistance you?

USER: I am Paul Williams. Owing to an emergency, I need a direct flight to go Washington to see my grandmother, she is not well actually. Please help me with that.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your travel dates?

USER: Sure, I need to go on 01/30 and intend to back on 02/01.

ASSISTANT: Please share your airport codes?

USER: Sure, I am flying from PHL to DCA.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to inform you that there were no flights found on your route.

USER: No problem, I will choose another alternative.

ASSISTANT: Thank you for connecting with us.

USER: Thank you for your information.