You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you?

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

ASSISTANT: Sure, on what dates are you planning to make your trip?

USER: Sure, my planned travel dates are Jan 25 and Jan 27.

ASSISTANT: How many connections are required?

USER: Please look for a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I would like to return my journey for the morning flight.

ASSISTANT: May I know your name?

USER: Myself Brian Phillips.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, I regret to inform you that there are no flights obtained on your journey dates to book a flight ticket.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for opting us.