You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Steven Taylor here. I want to meet my wife at Minneapolis, please book my ticket from Philadelphia.

ASSISTANT: Sure, may I know your planned travel dates please?

USER: My itinerary dates are 05/01 and 05/03.

ASSISTANT: Can you please share your source and destination airport codes?

USER: My source and destination airport codes are PHL and MSP.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: It's ok, thank you.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your help.