You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I would like to book a flight ticket to Denver to overview the city.

ASSISTANT: Ok.

USER: Can you do the reservation?

ASSISTANT: May I know your travelling dates?

USER: Dates are 09/26 and 09/28.

ASSISTANT: May I know your airport codes?

USER: My airport codes are Minneapolis, MSP to Denver, DEN.

ASSISTANT: Could you please mention your lay by's?

USER: I need connecting flight. Price should not cross 200.

ASSISTANT: Sorry to inform that there are no flights found on your requested dates. Thank you for approaching us. May I know your name?

USER: No problem, Thank you. Patrick Davis here.

ASSISTANT: Thanks.