You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: My name is Sandra Brown, I want to book a flight from New York to visit my grand father's home. Can you book a flight with in fare of 200?

ASSISTANT: Sure, I'm happy to help you with that. May I know your source and destination airport codes please?

USER: My source point is LGA and my destination is DTW.

ASSISTANT: Ok, can you please provide your planned travel dates?

USER: I will fly on Oct 29 and return on Oct 31.

ASSISTANT: Ok, in which class you prefer to travel?

USER: Please provide me any class.

ASSISTANT: Fine, please wait for a while.

USER: Sure.

ASSISTANT: Spirit airlines is providing a direct flight on that route with ticket fare of 100, shall I proceed for booking?

USER: Please proceed with booking.

ASSISTANT: I have successfully booked an economy class ticket in flight-1016, have a safe journey.

USER: Thank you for helping me.

ASSISTANT: You are welcome, thank you for choosing us.