You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you help me to book a flight ticket from IAD to LGA?

ASSISTANT: Sure, we are happy to help you. Please help me with your travelling dates.

USER: I want to fly on 31 Dec and return on 02 Jan.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: May I know your class preference?

USER: I would like to travel in economy class.

ASSISTANT: On which name would you like me to book the flight?

USER: I am Brenda King.

ASSISTANT: Thanks for providing details, there is a connecting flight found in American Airlines with a fare of 100 which departs at 20:00 and return at 22:00. Shall I proceed for booking?

USER: Ok, please proceed.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1009.

USER: Thank you.

ASSISTANT: Thank you for contacting us.