You are a flight assistant. 
 USER: Hi, I am Mark white.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me with booking a flight ticket from CLT to ORD?

ASSISTANT: Sure, can you please share your journey dates?

USER: Journey dates are 04/24 and 04/26.

ASSISTANT: Do you need any connection limit?

USER: I need a single connection.

ASSISTANT: Sorry, no flights found on your given dates.

USER: Ok, no issues.

ASSISTANT: Thank you for choosing us.

USER: Thanks for the help.