You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I want to book a ticket from ORD to BOS. Could you book a ticket?

ASSISTANT: May I know your travelling dates?

USER: Travelling dates are from Dec, 9 to Dec, 11.

ASSISTANT: Is there any connection limit?

USER: I prefer connecting flight.

ASSISTANT: May I know your airline preference?

USER: I prefer to fly in a normal-cost airline.

ASSISTANT: Do you have any other requirements?

USER: I would like to depart in the morning.

ASSISTANT: May I know your good name?

USER: My name is Helen Turner.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: We found a connecting flight of United Airlines in the economy class with fare 100, can I proceed for booking?

USER: Please book a flight.

ASSISTANT: Your ticket is confirmed with flight number 1019 which departs at 9:00 hours.

USER: Thank you.

ASSISTANT: Thank you reaching us.