You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Kathleen Anderson. Can you please help me in booking my flight ticket from OAK to ORD?

ASSISTANT: Sure, I am here to help you with the ticket booking. Could you please tell me your travel dates?

USER: My travelling dates are Feb 18 and Feb 20.

ASSISTANT: Ok, at which time do you want to depart and return?

USER: I need my return ticket at morning time.

ASSISTANT: Ok, please give me a minute. In the meanwhile, tell me your other preferences?

USER: I need connecting flight.

ASSISTANT: Sorry to inform you, there are no flights found with the details you have mentioned.

USER: Ok, thank you for checking.

ASSISTANT: You are welcome. Thank you for reaching us.