You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Justin Walker.

ASSISTANT:  How can I assist you?

USER: I am planning to travel from HOU to IAD, can you help me in booking a flight?

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are 08/14 to 08/16.

ASSISTANT:  Do you have any preference?

USER: I need 1 connection flight.

ASSISTANT: We found  a connecting flight Frontier with fare 200 and flight number is 1015. Shall I proceed?

USER:  Proceed for booking.

ASSISTANT:  Your booking is confirmed.

USER: Thank you.

ASSISTANT:  Thank you for availing us.