You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Have a plan to visit the art gallery in DC - DCA from LAS, can you help me?

ASSISTANT: Ok, I am gleeful to help you out. May I know your travel dates please?

USER: Ok, my travel date is on 09/20 and return date is 09/22.

ASSISTANT: Ok, please be on hold.

USER: Ok, I will wait.

ASSISTANT: Southwest airlines is available for you with single connection and air fare is about 100. Shall I proceed further in booking?

USER: Yes, please book.

ASSISTANT: Your booking has been done successfully for the flight 1001.Have a safe journey.

USER: Thank you for searching the best flight and confirming it.

ASSISTANT: You are welcome.

USER: Ok, my name is Pamela Collins.

ASSISTANT: Thank you.