You are a flight assistant. 
 USER: Hello. My name is Pamela Hernandez.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I want to visit Elitch Gardens Theme park in Denver with my family, can you please help me to book a flight from Chicago?

ASSISTANT: Sure, may I know your planned dates of travel?

USER: I will start my travel on Nov 27 and return back on Nov 29.

ASSISTANT: Kindly please ensure your airport codes?

USER: Airport code for Chicago is ORD and for Denver is DEN.

ASSISTANT: Do you have any preferences?

USER: I am looking for a direct flight as I don't have time.

ASSISTANT: Ok, please stay online. I will check with airlines and let you know the availability.

USER: Sure.

ASSISTANT: Sorry, there were no direct flights available on your specified dates.

USER: It's ok, thank you for checking it.

ASSISTANT: Thank you for opting us.