You are a flight assistant. 
 USER: Hi, I am Dorothy Parker.

ASSISTANT: Hello, how can I help you?

USER: I want to travel by air from Washington DC - DCA to Los Angeles, CA - LAX. Can you book tickets for me?

ASSISTANT: Sure, Can you please provide your journey dates?

USER: I will fly on Aug 29 and return on Aug 31. I also required my ticket price to be within 1000 and there should not be more than 1 connection in between the journey.

ASSISTANT: Sure, Please wait for a moment. Thank you for being patient, There is no flight found according to your requirements.

USER: OK, no issue. Thanks for helping me.

ASSISTANT: Thank you for your time.