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

ASSISTANT: Hello, how may I aid you today?

USER: I need to book a flight ticket from SFO to JFK, can you please help me to book a flight ticket?

ASSISTANT: Sure, could you please share your journey dates?

USER: My journey dates are Dec 04 and Dec 06.

ASSISTANT: Do you have any restrictions to be met?

USER: I need a halt.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: We have found a direct flight of Delta airlines, flight number-1004 and fare is 100. Shall I proceed with the booking?

USER: Go ahead.

ASSISTANT: Sure, your reservation has been done.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.