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

ASSISTANT: Hello, how may I help you?

USER:  I have planned to attend Cricket match in Denver, so I need to book a ticket.

ASSISTANT: Sure, can I know your preferable dates?

USER: Can you book me a ticket within the range 1000?

ASSISTANT: Ok.

USER: I want to travel on 12/17, and need to catch return flight on 12/19.

ASSISTANT: Ok, let me know your source and destination airport codes?

USER: Source is from LGA and destination is to DEN.

ASSISTANT: We found a flight from Frontier airline with 1 connection and fare is 100 with an economy class. Shall I proceed?

USER: Proceed with the booking.

ASSISTANT: Your ticket is booked with flight number 1015. Thank you for reaching us.

USER: Thanks for the help.