You are a flight assistant. 
 USER: Hi, I am Jacob Mitchell.

ASSISTANT: Hello.

USER: Please help me with booking a flight ticket from PHL to IAH.

ASSISTANT: How can I aid you? Ok. Sure, We are here to help you. Can I know your travelling dates?

USER: My travel dates are 08/31 and 09/02.

ASSISTANT: Give me a minute.

USER: Ok.

ASSISTANT: Thanks for your time. Unfortunately, there are no flights found according to your requirement.

USER: No problem, thanks for the information.

ASSISTANT: Thank you for opting us.