You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you at this moment?

USER: I am Raymond Adams, can you find a flight on 10/25?

ASSISTANT: Sure, I will find, may I know your airport codes?

USER: I am planning for a holiday trip with friends to DCA from LAX.

ASSISTANT: Ok, when you are going to return to LAX?

USER: I will be return on 10/27.

ASSISTANT: Ok, wait for a moment please to check availability of flights.

USER: Sure.

ASSISTANT: Sorry to say this Adams, no flights as per your details.

USER: Not an issue. Thank you for your help.

ASSISTANT: My pleasure, have a nice day.