You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I would like to meet my grand parents at Oakland, please help me in booking a ticket from BOS to OAK.

ASSISTANT: Can you please share your preferable journey dates?

USER: My planned journey dates are on Oct 18 and Oct 20.

ASSISTANT: May I know your name please?

USER: My name is William Gonzalez.

ASSISTANT: Do you have any specifications?

USER: I prefer a connecting flight.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.