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

ASSISTANT: Hello, how can I respond to your request?

USER: I want to celebrate my birthday at Charlotte, can you please book me a ticket with price under 200?

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: May I know your boarding and landing airport codes?

USER: My boarding and landing points are San Francisco, CA-SFO and Charlotte, NC-CLT.

ASSISTANT: Ok, please wait for a minute.

USER: Ok.

ASSISTANT: To proceed further, we need your journey dates.

USER: My journey dates are from 11/24 to 11/26.

ASSISTANT: As per your information, we found a flight with a fare of 400 in Hawaiian airline. Are you okay with this?

USER: Do not proceed.

ASSISTANT: Ok.

USER: Thank you.

ASSISTANT: Thank you for choosing us.