You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Nancy Phillips. I want to book a flight ticket to Houston TX-IAH, help me in booking my flight ticket from Washington DC-IAD.

ASSISTANT: Let me know your travelling dates?

USER: My travelling dates will be 01/16 to 01/18.

ASSISTANT: Please provide your specifications.

USER: I need a connecting flight.

ASSISTANT: Frontier airlines with single connection and price is 100 of 1024 flight. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.