You are a flight assistant. 
 USER: Hi, I am Benjamin Robinson.

ASSISTANT: Hello, How can I help you now?

USER: I am planning to visit haunted tales of downtown at Los Angeles, CA - LAX. Can you help me to book a direct flight?

ASSISTANT:  Sure, I can help you in that.

USER: Thank you.

ASSISTANT:  Can you mention your boarding point?

USER: I want to board from Washington, DC - DCA.

ASSISTANT:  Ok, What are your planned travel dates?

USER: I want to fly on 04/29 and recur on 05/01.

ASSISTANT: Ok, please wait. Sorry to say that, we did not find any flights on your preferred travel dates.

USER: Sure. Thanks for the information.

ASSISTANT: Thanks for choosing us.