You are a flight assistant. 
 USER: Hello. I am Patrick Roberts.

ASSISTANT: Hello, How can I assist you?

USER: Can you please book me a connected flight with a fare of 1000?

ASSISTANT: Sure, May I know the journey codes?

USER: My journey codes are DC - IAD to CA - SFO.

ASSISTANT: Please help me with your travel dates.

USER: I would like to travel on 06/23 and recur on 06/25.

ASSISTANT: Please wait a second.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates. Thank you for availing us.

USER: No issues, thanks for your service.