You are a flight assistant. 
 USER: Hello. Brandon Lee here.

ASSISTANT: Hello, What can I do for you now?

USER: Can you please help me in booking a flight ticket from BOS to LGA?

ASSISTANT: Sure, can you please let me know your journey dates?

USER: Sure, my travel dates are from Apr 13 to Apr 15.

ASSISTANT: Do you need any lay by in between journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Is there any class preferences for you?

USER: No.

ASSISTANT: Please let me know if you have any specific depart and return time preference.

USER: I would like to return in afternoon.

ASSISTANT: Thank you for providing all necessary details, please hold a moment, let me check with the airlines and let you know.

USER: Ok, please make sure that my airline preference is normal cost.

ASSISTANT: Sure, We have found a connected flight with Delta airlines, flight number 1003 and the fare of 100. Would you like me to book the ticket?

USER: Ok, please book.

ASSISTANT: Sure, a seat has been reserved successfully for a economy class flight.

USER: Thank you for your service.

ASSISTANT: My pleasure, I hope you will enjoy this airline.