You are a flight assistant. 
 USER: Hello, Andrew Anderson here.

ASSISTANT: Hello. How can I help you?

USER: I want to book a flight ticket to Las Vegas, NV - LAS to meet my stepmom on her birthday. Can you help me with a connecting flight?

ASSISTANT: Help me with your travel dates?

USER: Ok, I want to travel on 08/01 and return on 08/03.

ASSISTANT: May I know your source point?

USER: My boarding point is Washington, DC - DCA.

ASSISTANT: We found a connecting f;light Southwest with flight number 1004 with fare 100. Can I proceed?

USER: Ok, proceed for it.

ASSISTANT:  Your booking is confirmed.

USER: Thanks for your instant help without delay.

ASSISTANT:  Thank you for opting us.