You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I provide service to you?

USER: My name is Elizabeth Rodriguez. I want to attend for my sister's marriage in Washington, so please book a flight ticket within a price limit of 200.

ASSISTANT: Sure, can you please let me know your planned journey dates?

USER: My departure day is 07/05, return day is 07/07.

ASSISTANT: Can you please help me with your journey points?

USER: My source and destination airport codes are CA - LAX, DC - IAD.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a connected flight of 1023 Southwest airlines and the fare of 200. Shall I proceed to booking?

USER: Yes, please.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for choosing us.

ASSISTANT: Thank you for reaching us. Have a nice journey.