You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. how can I help you?

USER: I want to go Boston next month, can you please book a flight ticket from Oakland?

ASSISTANT: May I know your airport codes please?

USER: I want to fly from OAK and destination airport is BOS.

ASSISTANT: On which dates you like to travel?

USER: I want to take off on 04/19 and book my return ticket also on 04/21.

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

USER: Please book this flight ticket in my name is Nancy Smith.

ASSISTANT: Your booking is done in 1013 flight.

USER: Thank you for your help.

ASSISTANT: Thank yo for choosing us.