You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I would like to book a flight ticket from SFO, can you please help me in making an airline reservation to JFK?

ASSISTANT: Sure, when would you like to travel?

USER: I would like to travel on Sept 4th and return on Sept 6th.

ASSISTANT: May I know your name for the booking process?

USER: Daniel Lopez.

ASSISTANT: Do you have any preferences?

USER: I need a single connection.

ASSISTANT: Sorry, no flights were found in your desired routes.

USER: Ok, no worries at all. Thank you.

ASSISTANT: Thank you for reaching us.