You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you help me in booking a flight ticket in my preferable travel dates Dec, 18 and Dec, 20?

ASSISTANT: Please share me your source and destination codes.

USER: OAK and EWR are my specific airport codes.

ASSISTANT: Do you have any other specifications?

USER: I am looking for connecting flight.

ASSISTANT: Please help me with your name for booking.

USER: Sandra Lewis here.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 with flight number 1013. Shall I proceed with this flight?

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Most welcome.