You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what help can I do for your today?

USER: I'm Sarah Hall.Can you please book me a ticket from HOU to DCA? My travelling dates are 10/13 and 10/15.

ASSISTANT: Sure, will you please help me in providing your moving dates? Ok, please hold on, I will revert you.

USER: Ok.

ASSISTANT: Sarah, as per your details there is an airlines JetBlue providing a flight to your destination, can I proceed?

USER: Ok, you can proceed.

ASSISTANT: Your ticket has booked with the flight number 1000, thank you for contacting us.

USER: Thank you for your help.