You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Can you help me to book a flight ticket from OAK to DEN?

ASSISTANT: Sure, we are here to help you in booking.

USER: Thank you.

ASSISTANT: Kindly share your planned travelling dates to proceed further.

USER: Aug, 26 and Aug, 28 are my planned travel dates.

ASSISTANT: Do you need a break in between your journey?

USER: Yes, I need a break.

ASSISTANT: Please let me know if you have any depart and return timings.

USER: No, thanks.

ASSISTANT: Is there any other specifications for this trip?

USER: No.

ASSISTANT: Before checking, may I know your name please?

USER: Robert Smith here.

ASSISTANT: Thank you for sharing your journey details, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform you currently no flights are running at that locations due to abnormal weather conditions.

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

ASSISTANT: Thank you for approaching us.