You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER:  I am Patrick Evans. I am a Cop and I have to travel from SEA to PHX to investigate a case.

ASSISTANT: Can I know your dates of journey?

USER: My travelling dates are 02/17 to 02/19.

ASSISTANT: Sorry Patrick, I didn't find any flight basis on your details.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.