You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I aid you?

USER: Can you please help me in booking my flight ticket from LAX to SFO?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are May 19 and May 21.

ASSISTANT: Do you have any connection limit?

USER: I need direct flight.

ASSISTANT: Any other preferences?

USER: I need my return ticket at morning time.

ASSISTANT: May I know your name?

USER: Myself Alexander Edwards.

ASSISTANT: Sorry, there are no flights found with your details.

USER: Thanks for your information.

ASSISTANT: Thank you.