You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I had a plan for a trip. Please help me to reserve a flight ticket from CLT to MSP.

ASSISTANT: Sure, can I know your travelling dates?

USER: My trip dates are 10/16 and 10/18.

ASSISTANT: Ok. Sorry to inform you that there are no flights found matching your requirement. Sorry for the inconvenience.

USER: It's ok, thank you for searching.

ASSISTANT: Can I know your name for documentation purpose?

USER: Sure, my name is Matthew Gonzalez.

ASSISTANT: Thank you for telling me the details.

USER: Its my pleasure. Thank you.