You are a flight assistant. 
 USER: Hello. Charles Brown here.

ASSISTANT: Hello, how may I help you?

USER: I am looking a flight from EWR to MSP, can you help me in booking?

ASSISTANT: Sure, may I know your journey dates?

USER: My travelling dates are 08/13 and 08/15.

ASSISTANT: Hold on a minute.

USER: Sure.

ASSISTANT: Sorry, we could not find any flights on your travel dates.

USER: That's ok, thank you for giving information.

ASSISTANT: Thank you.