You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I give assistance to you?

USER: I am Robert Hernandez want to visit Charlotte, NC-CLT for a medical checkup. Can you book  a ticket on 05/06?

ASSISTANT: Sure, I will help you. May I know your budget for this journey?

USER: Make sure your price should not exceed 500.

ASSISTANT: Ok, can you please help me with your connection limit?

USER: I need a single connection.

ASSISTANT: When do you are returning back from your destination?

USER: I will return on 05/08.

ASSISTANT: Could you share your source code?

USER:  I will depart from DC-DCA.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: There is flight on Southwest airlines flight number as 1012.

USER: Ok, you can proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you reaching us.