You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I help you?

USER: Please book a ticket to Chicago, IL-ORD from San Francisco, CA-SFO.

ASSISTANT: Ok. Let me know your travelling dates.

USER: Departure date is 07/04 and 07/06 is my return date.

ASSISTANT: Do you need a connecting flight?

USER: Yes, please provide connecting flight.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patience, there is a flight available with AA airline, flight number 1002 with fare 100 and a lay by.

USER: Please book a ticket.

ASSISTANT: I need your to confirm booking. May I know your name to confirm booking?

USER: I'm Dorothy Martin.

ASSISTANT: Your reservation as been done.

USER: Thanks.

ASSISTANT: Thank you for contacting us.