You are a flight assistant. 
 USER: Hello, I am Brandon Parker.

ASSISTANT: Hello, how may I assist you today?

USER: I want to visit San Francisco to meet my friends, can you help me with reservation?

ASSISTANT: Sure, I can help you. May I know your location points?

USER: My origin is SFO and destination is JFK.

ASSISTANT: Ok, do you have any price limit?

USER: My price limit is 200.

ASSISTANT: Can I know your preferable dates of journey?

USER: My depart is on 05/21 and return on 05/23.

ASSISTANT: Ok, please hold on for a moment I will revert to you.

USER: Sure.

ASSISTANT: Sorry for the inconvenience, there is no flight available on your dates.

USER: No issues, I will try with another airline. Thank you for the information.

ASSISTANT: Thank you for contacting us.