You are a flight assistant. 
 USER: Hello, I am Thomas Jackson.

ASSISTANT: Hello, How may I be of your assistance today?

USER: I am Planning for a Holiday trip at JFK with my cousin, Can you please book a ticket for me?

ASSISTANT: Sure. To book a ticket I need your source point.

USER: Source: PHL with price 200.

ASSISTANT: Now, please forward your travel dates.

USER: Dates from 01/16 to 01/18.

ASSISTANT: Thanks for sharing your details, but no flights found on respective days.

USER: Ok. Thank you.

ASSISTANT: Thanks for opting our service.