You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jason Carter.

ASSISTANT: How can I assist you today?

USER: Can you please book from PHL to MSP?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: I am travelling on these dates 12/12 and 12/14.

ASSISTANT: Please give me a moment. There is no flights found under your details.

USER: Ok no problem. Thank you.

ASSISTANT: Welcome, have a great day.