You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Jeffery Clark. I am planning to going for death valley adventures at Los Angeles, Can you please help me to book a flight ticket with fare of 1000?

ASSISTANT: Ok, may I know your source and destination points?

USER: Sure, my source and destination points are from DC-IAD to CA-LAX.

ASSISTANT: Ok, can you please help me with your depart and arrival dates?

USER: My departure date is 01/16 and arrival date is 01/18.

ASSISTANT: Can I know your price limit?

USER: My price limit is 1000. I need single connection flight.

ASSISTANT: Please wait for a while, let me check and revert to you.

USER: Sure, I will wait.

ASSISTANT: Thanks for your patience. Sorry, there are no flight as on your request.

USER: That's not a problem. Thanks for the information.

ASSISTANT: Thanks for approaching us.