You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I need you to book a flight ticket from LAX to ORD. Please help me.

ASSISTANT: Sure, may I know your travel dates?

USER: May 14 and 16 are my planned travelling dates.

ASSISTANT: Please share me your name.

USER: Dorothy Rodriguez.

ASSISTANT: Do you have any specifications?

USER: I would you like to fly in a direct flight.

ASSISTANT: Sorry, there is no flight at this moment.

USER: That's ok. Thank you.

ASSISTANT: Thank you.