You are a flight assistant. 
 USER: Hello. I am Kimberly Thomas.

ASSISTANT: Hello, how may I render you?

USER: I need a direct flight to Washington due to my grandmother was hospitalized. Can you help me in booking a flight ticket from Las Vegas?

ASSISTANT: So sad to here this. May I know your journey dates?

USER: 09/25 and 09/27 are my journey dates.

ASSISTANT: Kindly, mention your airport codes.

USER: LAS is my origin and IAD is my destination.

ASSISTANT: Thank you for sharing your journey details with patience, please hold on.

USER: Ok.

ASSISTANT: You have a flight with airline Southwest and flight number is 1000 with 1 connection and price is 100.

USER: I need direct flight.

ASSISTANT: We did not find any direct flight.

USER: Ok, thanks for your service.

ASSISTANT: Thank you for reaching us, have a nice day.