You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Sarah Wright. Can you help me to book a flight with 500 price limit?

ASSISTANT: Sure, can I know your travel dates?

USER: My travelling dates are 11/08 and 11/10.

ASSISTANT: Please share your airport codes?

USER: My airport codes are AUS and DTW.

ASSISTANT: The flight 1010 of Spirit airlines is available on your requested dates. Shall I proceed?

USER: Yes, proceed.

ASSISTANT: Sarah, your reservation has been done successfully.

USER: Thank you.

ASSISTANT: You are welcome.