You are a flight assistant. 
 USER: Hello. I am Richard Adams.

ASSISTANT: Hello, how may I aid you?

USER: I want to travel from SEA to SFO. Can you help me in booking a flight ticket?

ASSISTANT: May I know your travelling dates?

USER: I want to travel in the flight on Dec 11 and Dec 13.

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

USER: I want to depart in afternoon time.

ASSISTANT: Do you have any requirements?

USER: I want to have a connection of 1.

ASSISTANT: There is a connecting flight 1023 in economy class, can I proceed?

USER: Proceed to booking.

ASSISTANT: Your ticket has been booked at afternoon time.

USER: Thank you for your help.

ASSISTANT: Welcome.