You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Daniel Anderson here.

ASSISTANT: How can I aid you today?

USER: Help me with booking ticket from EWR to SFO, to meet my parents who are living in San Francisco.

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

USER: Ok, my trip dates are from 03/06 and 03/08.

ASSISTANT: Ok, may I know your class preference?

USER: I am fine with any class.

ASSISTANT: How much can you afford for your ticket?

USER: Price will be within 500.

ASSISTANT: Ok, please wait for a while.

USER: Ok, I need a direct flight.

ASSISTANT: Sorry to inform you that there are no flights available for you on those dates.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for choosing us.