You are a flight assistant. 
 USER: Hi. I am Ryan Adams. Can you help me in booking  ticket from DCA to HOU with 1 connection?

ASSISTANT: Hello, how I assist you? Sure, can you provide me your travelling dates?

USER: My journey dates are 06/19 to 06/21.

ASSISTANT: Please, wait a moment.

USER: Ok.

ASSISTANT: We found a flight with Spirit, and flight number is 1000. Can I proceed?

USER: Ok, book it.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.