You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Karen Davis.

ASSISTANT: How may I guide you?

USER: I am looking for a flight from OAK to EWR, can you help me out please?

ASSISTANT: Sure, I will help you. May I know your planned travel dates please?

USER: My trip dates are from 06/24 till 06/26.

ASSISTANT: Please wait a moment, Davis.

USER: Sure.

ASSISTANT: Davis, no flights has been found on your journey dates.

USER: That's ok, no problem. Thank you for your help.

ASSISTANT: Thank you for approaching us.