You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Cynthia Collins.

ASSISTANT: How can I aid you?

USER: I would like to travel from MSP to LGA, can you please help me in flight booking?

ASSISTANT: Sure, May I know your travelling dates?

USER: My departure day is Dec 14, return day is Dec 16.

ASSISTANT: Do you have any preferences?

USER: I want normal cost airline.

ASSISTANT: You have a flight 1027 in Southwest airline and price 100 with a connection, Shall I proceed?

USER: You can reserve it.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.