You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: Help me in booking a flight from HOU to DEN?

ASSISTANT: Sure, On which dates would you like me to book a flight ticket for you?

USER: My travelling dates are Aug to 12 to 14.

ASSISTANT: On what name, do I need to reserve the ticket?

USER: I am Sarah Taylor.

ASSISTANT: Do you have any other restrictions to be met?

USER: I prefer to travel in connection flight.

ASSISTANT: There is a connecting flight 1009 in Delta airlines at the cost of 200 with economy class. Shall I proceed?

USER: Proceed for booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for availing us.