You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I support you?

USER: Can you please help me in booking my flight ticket from LAS to ORD?

ASSISTANT: Sure, May I know your travelling dates?

USER: My planned travel dates are Dec 11-13.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any class preference?

USER: I am comfortable in economy class.

ASSISTANT: May I know your name?

USER: My name is Rebecca Moore.

ASSISTANT: Do you have any other preferences?

USER: I want to depart in the afternoon.

ASSISTANT: Thanks for your details, there are no flights found on your data.

USER: Ok, no issues. Thanks for checking.

ASSISTANT: Ok,Thank you.