You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you today?

USER: I am Nicholas Taylor. Can you please help me to reserve a flight ticket from ORD on the date of Sept 27?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your destination airport code?

USER: The destination airport code is DFW.

ASSISTANT: Ok, please share your return date.

USER: I want to return on the date of Sept 29.

ASSISTANT: Is there any connection limit?

USER: I need a single connecting flight.

ASSISTANT: In which class, you prefer to go?

USER: I need an economy class flight to travel.

ASSISTANT: Do you have any other specifications?

USER: The returning time of the flight should be in the morning.

ASSISTANT: Ok, please wait for a moment.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting, no flights were found based on your schedule.

USER: It's ok, not a problem with that. Anyways thank you for your time.

ASSISTANT: Thank you for choosing us.