You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Barbara Hernandez, can you help me to book a flight ticket from Las Vegas, NV - LAS to CA - SFO?

ASSISTANT: May I know your travelling dates please?

USER: Ok, please book a flight for the dates 10/07 and 10/09.

ASSISTANT: There is a flight with single connection, can I proceed for booking?

USER: Yes, book the flight.

ASSISTANT: Your booking is done in 1004 flight?

USER: Ok, that is good. Thank you.

ASSISTANT: Thank you.