You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: I am Mary Martinez.

ASSISTANT: Ok.

USER: I want to book a flight ticket to go for foothills explorer Tour at Denver, please help me out with a connecting flight.

ASSISTANT: Sure, may I know your budget for flight ticket?

USER: I need the ticket within price 200.

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My travelling dates are from 07/19 to 07/21.

ASSISTANT: Kindly, mention your source and destination codes?

USER: My source code is EWR and Dest code is DEN.

ASSISTANT: There is a flight found with UA airline of flight 1015. Shall I proceed?

USER: Please go with booking.

ASSISTANT: Your ticket has been done successfully.

USER: Thank you.

ASSISTANT: Thank you for choosing us.