You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you from flight booking agency?

USER: I am Kenneth Walker, can you help me to search a flight from DCA?

ASSISTANT: Sure, I am here to help you. Can you please share your preferable journey dates?

USER: Yes, I would like to travel on 08/05 and 08/07.

ASSISTANT: May I know your destination airport code, so that I can search the flights availability.

USER: I would like to visit SFO to meet my friends.

ASSISTANT: Wait a moment please.

USER: Please search a flight with 0 connection limit.

ASSISTANT: Kenneth Walker, I have searched with your request of 0 connection limit but I couldn't find any services.

USER: That's fine, not an issue. Thank you for your help.

ASSISTANT: Thank you for approaching us.