You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I need to book a flight ticket to New York with the normal-cost airline. Can you please help me with that?

ASSISTANT: Sure, kindly share your travel dates.

USER: Ok, my travel dates are Aug 14 and Aug 16.

ASSISTANT: May I know your airport codes?

USER: Sure, my airport codes are MSP and LGA.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight for my journey.

ASSISTANT: May I know your name?

USER: Sure, my name is Brandon Harris.

ASSISTANT: Is there any other specifications?

USER: I need a return flight in the evening.

ASSISTANT: Ok, please wait a moment.

USER: Sure, I will wait just now my schedule got changed I need to departure in the evening.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thanks for reaching us.