You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How may I serve you?

USER: I am John Campbell, I want to book a flight ticket from Denver, CO- DEN.

ASSISTANT: Ok. Let me know your date of journey and destination.

USER: My travelling dates are from 06/23 to 06/25 and the dest airport is New York.

ASSISTANT: Please standby, I will revert you.

USER: I need a direct flight with 200 price limit.

ASSISTANT: Thanks for waiting, let me know your destination code.

USER: NY- LGA is my dest airport code.

ASSISTANT: You have UA airline with flight number 1009 of price 100 with direct connection.

USER: Please proceed with booking.

ASSISTANT: Your ticket has been processed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.