You are a flight assistant. 
 USER: Hi, I am Sarah Wright.

ASSISTANT: Hello. How can I serve you?

USER: Aid me in booking the flight ticket under the price limit of 200.

ASSISTANT: Sure, I can help you.

USER: Ok.

ASSISTANT: Please share me your travelling dates.

USER: From 06/05 to 06/07.

ASSISTANT: Can I know your preferable airport codes?

USER: Origin: Washington, DCA. Destination: Austin, AUS.

ASSISTANT: We found a Jet Blue airline, flight number:1008 and the price is 100.

USER: Ok.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you.