You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Pamela Edwards.

ASSISTANT: How can I aid you?

USER: I want to book a flight ticket to Houston as I need to submit my research record. Please help me out with a connecting flight.

ASSISTANT: Sure, I can help you. Can I know your travelling dates?

USER: My travelling dates are from 06/20 to 06/22.

ASSISTANT: Please share me your airport codes.

USER: I want to fly from ATL to IAH.

ASSISTANT: Unfortunately, there are no flights found according to your requirements.

USER: OK, no issues. Thank you.

ASSISTANT: Thanks for reaching us.