You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please help me to book a flight ticket from IAD to HOU?

ASSISTANT: Sure, please forward your trip dates.

USER: My travelling dates are Aug 8 to Aug 10.

ASSISTANT: Is there any timings preference?

USER: No.

ASSISTANT: Any other requirements?

USER: I need a single connection of flight.

ASSISTANT: Can you mention your name to proceed further?

USER: I am Karen Brown.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Delta Airlines has a connecting flight with number 1010 for fare 100, shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.