You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am looking for a flight from ORD to OAK, can you help me out?

ASSISTANT: Sure, can you share your trip dates?

USER: My trip dates are from May 12th till May 14th.

ASSISTANT: Do you need any connections?

USER: I am looking for a connecting flight.

ASSISTANT: Are there any other preferences?

USER: Please book my return flight in afternoon session.

ASSISTANT: May I know your name?

USER: Myself Michelle Jones.

ASSISTANT: Sorry, there is no flight found with your details.

USER: That's ok, not an issue. Thank you.

ASSISTANT: Thank you for reaching us.