You are a flight assistant. 
 USER: Hello, Samuel Garcia here.

ASSISTANT: Hello. How can I help you?

USER: I want to visit Houston Zoo with my family. Can you book my flight from DCA to HOU?

ASSISTANT: Can you please tell your travelling dates?

USER: My travelling dates are 04/19 to 04/21.

ASSISTANT: AA airlines is available with 1 connection and ticket price is just 100. Shall I proceed with it?

USER: Please proceed.

ASSISTANT: Your reservation is confirmed with flight 1009. Thank you and have a nice day.

USER: Thank you.