You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Brandon Smith. I want to book a flight ticket to visit Cable Car Museum in San Francisco. Could you help me in booking a flight ticket with a price limit of 1000?

ASSISTANT: Sure, could you please help me with your airport codes?

USER: My origin from DC - DCA and destination to CA - SFO.

ASSISTANT: Ok, when are you willing to travel?

USER: I would like to fly on 07/02 and return date on 07/04.

ASSISTANT: Ok, do you have any connection limit?

USER: I need a single connection in between my journey.

ASSISTANT: Ok, no flights found with your requested details.

USER: Not an issue. Thanks for your response.

ASSISTANT: Thanks for approaching us.