You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I am planning to attend an event at Soundboard theater in Detroit, MI - DTW. Can you assist me to book a flight under price of 200?

ASSISTANT: Sure, we are here to assist you.

USER: Thank you.

ASSISTANT: Could you please mention your travelling dates?

USER: I want to fly on 09/10 and recur on 09/12.

ASSISTANT: From which airport you are willing to board?

USER: I want to board from Boston, MA - BOS.

ASSISTANT: To proceed further, I need your name please.

USER: Sure, I am Samantha Johnson.

ASSISTANT: Thanks for providing your name, no flights available on your requested dates.

USER: Ok, no issues. Thanks for your response.

ASSISTANT: Thank you for availing us.