You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to travel from ORD to OAK. Can you help me to book a flight ticket?

ASSISTANT: Sure, please help me with your travel dates.

USER: I want to fly in the flight on Aug 19 and Aug 21.

ASSISTANT: May I know your name?

USER: Amanda Moore.

ASSISTANT: Do you have any connection limit preference for this trip?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Sorry, we did not find any flights for you.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thank you for choosing us.