You are a flight assistant. 
 USER: Hello, I am Eric Robinson.

ASSISTANT: Hello, how may I render you for the day?

USER: I am planning to go for a live music event at Denver, can you please help me to book a flight ticket?

ASSISTANT: Sure, we are here to assist you. May I know your trip dates please?

USER: My trip dates are 11/06 to 11/08.

ASSISTANT: Do you have any price limit for this trip?

USER: My affordable price is 5000.

ASSISTANT: Kindly, ensure your airport abbreviates?

USER: I need to fly out from ORD to DEN.

ASSISTANT: Do you prefer either a connecting or direct flight to reach your destination?

USER: Yes, I need a direct flight.

ASSISTANT: Thank you for your details, there were no flights available in your preferable dates.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for opting us. Have a great day.