You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you today?

USER: I want to book a flight ticket to Boston as I have joining at Hardvard Campus, please help me out. I need a direct flight.

ASSISTANT: Sure, we will help you. Can you please let me know your journey points?

USER: I want to fly from TX- DFW to MA- BOS.

ASSISTANT: Kindly assign your travelling dates? Ok, please wait for a couple of minutes.

USER: My depart date is on 01/14 and return date is on 01/16. OK.

ASSISTANT: Thank you for waiting, we didn't found any flights matching your credentials.

USER: Ok, no problem.

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

USER: Thank you for your service. I am Justin Allen.

ASSISTANT: Thank you for reaching us. Have a good day.