You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Karen Edwards. I want to book a flight ticket from DA to HOU. Could you help me in booking?

ASSISTANT: Sure, we are willing to help you. May I know your travelling dates?

USER: My travelling dates are from Feb 26-28.

ASSISTANT: Could you please share your take off airport code?

USER: It is DCA.

ASSISTANT: Ok, please wait for a minute.

USER: Ok.

ASSISTANT: Thanks for your time, there is a connecting flight available with fare 200 in economy class of Hawaiian airline.

USER: Yes, please proceed.

ASSISTANT: Your booking has been confirmed with a flight number 1009.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.