You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to visit Seattle to meet my friend, will you help me in booking the flight ticket from LGA o SEA?

ASSISTANT: Sure, on what dates will you be travelling?

USER: My preferable journey dates are Aug 11 and Aug 13.

ASSISTANT: Do you need a normal cost airline or low cost airline?

USER: I always prefer Normal-cost airlines.

ASSISTANT: How many connections do you need?

USER: I need a flight with single connection.

ASSISTANT: On what name you want me to make the reservation?

USER: Myself Katherine Anderson.

ASSISTANT: Ok Katherine Anderson, there is a Delta airline with flight number 1007 is leaving from LGA and arrives at SEA with a airfare of 100. Is that fine?

USER: Sure, you can proceed with the booking.

ASSISTANT: Your booking has been done in economy class.

USER: Thank yo for helping me.

ASSISTANT: Thank you for opting us.