You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you at this moment?

USER: Myself Christine Miller. I need travel Washington DC, can you please reserve flight ticket from OAK and IAD?

ASSISTANT: Sure, please share your travelling dates.

USER: My travelling dates are Oct,08 and Oct,10.

ASSISTANT: Ok, do you need any halt in between the journey?

USER: Yes, I need a halt in my journey.

ASSISTANT: Do you have any other requirements?

USER: I need a normal cost flight.

ASSISTANT: Ok, please wait for few minutes.

USER: Sure.

ASSISTANT: There are no flights found on your requested dates.

USER: That's ok, thank you for searching the flights.

ASSISTANT: Thank you for reaching us.