You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I planned to meet my friend in ATL, can you please help me to book a flight ticket from IAH?

ASSISTANT: Sure, let me know your travel dates?

USER: I prefer to travel on Jun 6 and Jun 8.

ASSISTANT: Is there any connection limit?

USER: I prefer to travel in a connecting flight ticket.

ASSISTANT: Any other preference?

USER: I would like to depart in afternoon and return back in evening.

ASSISTANT: Ok, may I know your name to proceed further?

USER: I am Susan Harris.

ASSISTANT: Sorry, no flights available on your planned travel dates.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for contacting us.