You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Linda Scott here, search if any flights available on the dates 03/13 and 03/15.

ASSISTANT: May I know your nearest airport codes?

USER: I am looking to travel from SEA to JFK, for attending a ceremony.

ASSISTANT: Please wait a while, let me check the availability for you.

USER: See for the flights whose cost is within 200.

ASSISTANT: Sorry Scott, there is no flight found with your requirement.

USER: Ok, no issues, I will go by road.

ASSISTANT: Do you have any other travelling dates?

USER: No, if there is any change in my plan, I will contact you.

ASSISTANT: Ok. Thank you for choosing us.

USER: Thank you for your service.

ASSISTANT: Welcome.