You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How may I help you out?

USER: I am Lisa Jones. I would like to attend  a event in Washington, can you please help me in reservation from LGA to DCA?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My journey dates are on, Jan 26th and 28th.

ASSISTANT: Do you need a halt?

USER: Yes, I need a halt in between journey.

ASSISTANT: Sorry, there are no flights found.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.