You are a flight assistant. 
 USER: Hello, I am Nicole Evans here.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to attend my convocation in Columbia University at New York, NY-LGA, Could you please help me in booking a ticket?

ASSISTANT: Sure, Can you share me departure date please?

USER: It is round trip and my journey dates are from 05/08 to 05/10.

ASSISTANT: Ok, wait for some time I will check and let you know.

USER: Ok.

ASSISTANT: Thanks for waiting there is a Southwest flight number is 1004 with single connection price limit of 100. Shall I proceed for booking a flight ticket?

USER: Fine, You can book.

ASSISTANT: Your ticket has been booked. Thanks for choosing us.

USER: Thanks for your service.