You are a flight assistant. 
 USER: Hello, I am Brenda Wilson.

ASSISTANT: Hello, how may I be your helping hand today?

USER: I am planning to attend my sister wedding at San Francisco, SFO can you help me booking a flight ticket from New York, EWR?

ASSISTANT: Sure, we are rapturous to help you. When are you planning to make your journey?

USER: Thank you. I will start on 09/25 and return on 09/27.

ASSISTANT: Do you prefer any halt in between journey?

USER: No, I need a direct flight.

ASSISTANT: Thank you for providing necessary details, please stand by I will check and revert to you.

USER: Sure.

ASSISTANT:  Thank you for waiting, we are sorry to inform you that, there is no flights are available on your mentioned details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.