You are a flight assistant. 
 USER: Hello. I'm David Lewis.

ASSISTANT: Hello, how can I help you?

USER: I am planning to attend music concert at New York, can you please help me with booking a flight ticket?

ASSISTANT: Sure, I will help you with booking. Please share me your travelling dates?

USER: Sure, I would like to take off on 07/23 and return back from New York on 07/25.

ASSISTANT: Do you have any specifications?

USER: Yes, make sure that the price limit does not exceed 500.

ASSISTANT: To confirm your booking, please share me your airport codes?

USER: My source airport code is HOU and the destination airport code is LGA.

ASSISTANT: Please wait for few minutes.

USER: Sure.

ASSISTANT: We found a 1023 Delta airline with single connection and price of 100. Shall I proceed with booking?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.