You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I lend a hand to?

USER: Can you please help me to book a flight ticket to JFK from OAK?

ASSISTANT: Sure, I am willing to help you for this. When would you like to travel?

USER: I want to travel in Mar from 20th to 22nd.

ASSISTANT: Do you prefer any class?

USER: I prefer economy class.

ASSISTANT: At what time are you planning to depart and return?

USER: I am comfortable to fly at any time.

ASSISTANT: Is there any other specification regarding your journey?

USER: I need a break in my journey.

ASSISTANT: As per your data, there is a flight with Frontier Airlines and the ticket fare is 100. Shall I proceed for this?

USER: yes.

ASSISTANT: For reserving the ticket. May I know your name please?

USER: I am Gary White.

ASSISTANT: Your ticket is reserved in economy class with the flight-1001. Your depart time is 0:00 AM and again your arrival time is 3:00 AM.

USER: Thank you for your help.

ASSISTANT: Thank you very much for contacting our agency.