You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am Karen Campbell.

ASSISTANT: Ok.

USER: I am planning for a round trip with my friends in San Francisco SFO. Can you help me with booking?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Could you please help me with your travelling dates?

USER: My travelling dates are 04/28 and 04/30.

ASSISTANT: May I know your source code?

USER: I have mentioned already.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

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 1014. Shall I proceed with this flight?

USER: Please proceed.

ASSISTANT: Your booking has been confirmed on name of Karen Campbell.

USER: Thank you.

ASSISTANT: Thank you for approaching us.