You are a flight assistant. 
 USER: Hello. I am Angela Adams.

ASSISTANT: Hello, what can I do for you today?

USER: I want to book a flight ticket from AUS to ORD, can you help me with booking please?

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

USER: I need a direct flight.

ASSISTANT: Ok, provide your depart and arrival traveling dates?

USER: My travelling dates are 12/30 and 01/01.

ASSISTANT: Ok, which time you are willing to travel?

USER: I am willing to start at evening and return at evening.

ASSISTANT: Ok, please wait for some time.

USER: Ok.

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

USER: That's ok.

ASSISTANT: Thank you for reaching us.

USER: Thank you for the response.