You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hi.

USER: I am Anna Moore.

ASSISTANT: How can I  help you?

USER: I am planning to travel from LAX to OAK. Can you please help me to book a ticket?

ASSISTANT: Your travelling dates please?

USER: I want to start on Dec 3 and return on Dec 5.

ASSISTANT: Do you have any specifications?

USER: I would like to prefer business class with a connecting flight. I want to return in the morning.

ASSISTANT: I am sorry no flights found on your route.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for choosing us.