You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Thomas Phillips and I want to fly to Los Angeles, CA-LAX on 03/27, can you help me to book a flight ticket?

ASSISTANT: Sure, can you help me with your origin point and return journey date?

USER: Sure, my boarding point is DC-DCA and I intend to return on 03/29.

ASSISTANT: Please wait a moment I will check and revert you.

USER: Ok, make sure that he connection limit is 1.

ASSISTANT: Ok. Thank you for waiting. Sorry, we did not found any flight based on your given details.

USER: Ok, thanks for your information.

ASSISTANT: Thank you for reaching us.