You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Amy Roberts here. Could you book my ticket from ATL to OAK?

ASSISTANT: Sure, tell me your travel dates please?

USER: My trip dates are Oct 25 and Oct 27.

ASSISTANT: May I know your departure and return time please?

USER: I want to depart in the morning and return in the evening.

ASSISTANT: Do you have any other preferences?

USER: I need a connecting flight.

ASSISTANT: Sorry there no flights available in the morning time.

USER: No problem, thank you.

ASSISTANT: Thank you.