You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me to book a ticket from LAX to ORD?

ASSISTANT: Sure, can I know your travelling dates?

USER: My travelling dates are on Mar 04 and Mar 06.

ASSISTANT: On which name should I reserve the flight ticket?

USER: I want to book a ticket on Helen Moore.

ASSISTANT: Do you have any connection limit?

USER: I need a single connection.

ASSISTANT: Do you have any other specifications?

USER: I need a economy class.

ASSISTANT: Sorry, there are no flights found on given dates.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for reaching us.