You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Stephanie Campbell. I have to attend a Live Concert at San Francisco, could you please help me with booking a flight ticket from EWR to SFO?

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

USER: I would like to depart on Feb 12th and return on Feb 14th.

ASSISTANT: Would you like to prefer direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any particular time for departing and returning?

USER: Make sure that my depart time must be morning.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: You are welcome.