You are a flight assistant. 
 USER: Hello, Debra Davis is my name.

ASSISTANT: Hello, how can I oblige you at present?

USER: As I am an actor, I want to attend Film festival at Denver, Can you please book a ticket to DEN?

ASSISTANT: Sure, let me know your airline preference.

USER: I don't have any airline preference.

ASSISTANT: Ok, may I know your boarding point?

USER: I want to start from MCO.

ASSISTANT: Ok, Could you please share your preferred journey dates?

USER: My scheduled dates are May 10 and May 12.

ASSISTANT: Is there any class preference?

USER: Yes, I prefer economy class.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry for inconvenience, there were no flights found based on your requested details.

USER: Ok, no worries. Thank you.

ASSISTANT: Thank you for approaching us.