You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how could I assist you?

USER: Can you please help me in booking from DCA to IAH?

ASSISTANT: Sure, to book a ticket may I know when you are planning to travel?

USER: My travelling dates are from Feb 24 to Feb 26.

ASSISTANT: Is there any other requirements, please let me know?

USER: I need a connecting flight.

ASSISTANT: Can you please share me your name?

USER: My name is Katherine Phillips.

ASSISTANT: There is a flight found with an United airline of flight 1012 in an economy class with lay by. Shall I proceed?

USER: Ok, proceed.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you.