You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you today?

USER: I am James Parker. Can you help me in booking my flight ticket from OAK to LAS?

ASSISTANT: Sure, may I know your planned trip dates please?

USER: My trip dates will be June 30th to July 2nd.

ASSISTANT: Please share me your connection limit.

USER: I prefer a stopover flight.

ASSISTANT: Do you need any other specifications?

USER: My depart time should be in the morning.

ASSISTANT: We are sorry to inform you that there is no flight found with your given name.

USER: Its ok, thank you for your information.

ASSISTANT: Thank you for opting us.