You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a connecting flight ticket to attend an event from TX. Can you help me?

ASSISTANT: Sure, may I know your name please?

USER: Thank you. Stephanie Davis.

ASSISTANT: May I know your source and destination airports codes please?

USER: DFW and PHL are my airport codes.

ASSISTANT: Ok, may I know on which dates your willing to travel?

USER: Oct 07th and 09th are my travelling dates.

ASSISTANT: Is there any specific preferences for you?

USER: No.

ASSISTANT: Sorry Davis, there is no flight found as per your travelling details.

USER: No issue. Thank you.

ASSISTANT: Thank you for reaching us.