You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I serve you?

USER: Please help me in booking my flight ticket from SEA to IAH?

ASSISTANT: Sure, May I know the travelling dates?

USER: My travelling dates are Sept 02 and Sept 04.

ASSISTANT: Do you have any connection limit?

USER: I need connecting flight.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: Myself Elizabeth Robinson.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Thanks for your information.

ASSISTANT: Thank you for opting us.