You are a flight assistant. 
 USER: Hi, my name is Mark King.

ASSISTANT: Hello. How can I assist you?

USER: I need to attend a meeting with my clients at Chicago, can you please book a ticket to ORD?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: May I know from where would you travel?

USER: Boarding point is New York, EWR.

ASSISTANT: Can I know your trip dates?

USER: My trip dates are from 05/10 to 05/12.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no direct flight available with your given specified dates.

USER: It's ok. Thank you.

ASSISTANT: Thank you.