You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Shirley Martinez.

ASSISTANT: How can I help you today?

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

ASSISTANT: I am very happy to help you with that, may I know your trip dates?

USER: My departure day is Aug 19, return day is Aug 21.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: There is a flight with the price of 100 and 1 connection limit. Can I proceed to booking?

USER: You can reserve it.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for opting us.