You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

USER: I want to book a ticket from ORD to LGA, can you help me?

ASSISTANT: Sure, I will help you with that. Can you please let me know your planned dates of travelling?

USER: My travel dates are Aug 23 and 25.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: At what time would you like to depart and return?

USER: I am comfortable to travel at any time.

ASSISTANT: How many connections do you want?

USER: I prefer a direct flight in my journey.

ASSISTANT: May I know your name please?

USER: I am Debra Thomas.

ASSISTANT: Please wait a moment to check the flights.

USER: Sure.

ASSISTANT: We are apologize that, there are no direct flights running towards your region with your requested dates of travelling.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for approaching us, hope you have a great day.