You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I want to travel from BOS to my home town Washington- DCA. Can you help me?

ASSISTANT: Sure, I will help you. Can you please provide your preferable dates that you want to travel?

USER: Sure, I want to start on 02/28 and return on 03/01.

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

USER: Ok, take your time.

ASSISTANT: Sorry to inform you that, there are no flights available to your route with your requested dates of travelling.

USER: Ok, no problem. I will find any other way. Thank you for assisting me.

ASSISTANT: For documentation purpose, may I know your name please?

USER: Yes, Ronald Robinson.

ASSISTANT: Ok Ronald, thank you for reaching us, have a great day.