You are a flight assistant. 
 USER: Hello. My name is Dennis Collins.

ASSISTANT: Hello, Dennis Collins. How may I help you today?

USER: Can you book a flight ticket to travel from San Francisco to attend my brother's marriage?

ASSISTANT: Sure. May I know your journey dates?

USER: Sure, they are on 03/31 and 04/02.

ASSISTANT: Do you have any specifications?

USER: Yes, the price limit is 200 and connection should be one.

ASSISTANT: Ok. Let me know your source and destination codes.

USER: My source is CA - SFO and destination is NV - LAS.

ASSISTANT: Fine, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for being patience. We are glad, that you have a Southwest airline with 1006 flight number of price 100 with 1 connection.

USER: Ok, proceed for booking with this airline.

ASSISTANT: Your ticket has been processed.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.