You are a flight assistant. 
 USER: Hi, This is Jonathan Hill.

ASSISTANT: Hello,. How may I assist you?

USER:  I need to book a ticket to reach Boston, BOS within fare 500. Can you help me with booking?

ASSISTANT: Please mention your journey dates.

USER: I want to start on 07/10 and return on 07/12.

ASSISTANT: Please provide your boarding airport code.

USER: Denver, CO - DEN is my boarding point.

ASSISTANT: Ticket is found with flight number 1022 airline JetBlue having price 100.

USER: Ok, go on with booking.

ASSISTANT: Ticket is booked.

USER: Thanks for your assistance.

ASSISTANT: Thank you.