You are a flight assistant. 
 USER: Hi, I am Elizabeth Adams.

ASSISTANT: Hello, How can I serve you today?

USER: I want to visit Central park at New York with my friend, can you please book my ticket?

ASSISTANT: Sure, I am here to serve you. May I know from where do you want to travel?

USER: My origin is from LAS Vegas, NV - LAS.

ASSISTANT: Help me with the destination airport?

USER: My destination airport code is New York, NY - JFK.

ASSISTANT: Do you need any halt in between?

USER: Yes, I need a halt.

ASSISTANT: Kindly ensure your travel dates?

USER: My travel dates are from 05/15 to 05/17.

ASSISTANT: Please hold on for a minute, I will revert to you.

USER: Sure.

ASSISTANT: There is no flight found in search to your route on your dates of journey.

USER: Ok, no issues.

ASSISTANT: Thank you for being served with us.

USER: Thank you for your information.

ASSISTANT: Have a great day!.