You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I aid you today?

USER: Please book a ticket from Houston, TX-IAH to Washington DC-DCA. I am Patrick Brown.

ASSISTANT: Sure, could you please help me with your travelling dates?

USER: Travelling dates are from 04/29 to 05/01.

ASSISTANT: May I know how much you can put for the ticket?

USER: Price limit is 1000.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: There is a Hawaiian 1013 with 1 connection is perfectly matches your requirements. Shall I proceed?

USER: Please book ticket.

ASSISTANT: Your booking has been confirmed on name of Patrick Brown.

USER: Thanks for confirming ticket.

ASSISTANT: Thank you for opting us, hope you contact us again.