You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be of your address?

USER: I am heading from Austin to attend a beer festival at JFK. So, can you help me book a  flight ticket under the rage of 200?

ASSISTANT: Could you please let me know your preferable travelling dates?

USER: They will be on 05/21 and 05/23.

ASSISTANT: May I know your name?

USER: I am Jeffrey Johnson.

ASSISTANT: Where do you want to travel from?

USER: My origin is from AUS.

ASSISTANT: Thanks for your information. Unfortunately there are no flights found with your details.

USER: Ok, thank you for your information.

ASSISTANT: Thanks for reaching us. have a great day.