You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: My name is Michael Mitchell. I am planning to travel from OAK to EWR to meet my friend, can you help me for booking a  flight ticket?

ASSISTANT: Sure, please provide me your travel dates.

USER: My travelling dates are 08/02 and 08/04.

ASSISTANT: I could not find any flight with your details.

USER: That's ok, thank you for checking.

ASSISTANT: My pleasure.