You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jennifer Roberts.

ASSISTANT: How may I help you at this moment?

USER: I want to book a connecting flight ticket to meet my grandparents. Can you help me?

ASSISTANT: Sure, I am here to help you with that. Can I know your travelling dates?

USER: Thank you. 10/05 and 10/07 are my travelling dates.

ASSISTANT: Do you have any other specifications?

USER: I would like to depart in the afternoon.

ASSISTANT: May I know your airport codes?

USER: DFW and ATL are my airport codes.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: Sorry to say that, there are no flight's available based on your travelling dates.

USER: No issue. Thank you.

ASSISTANT: Thank you for reaching us.