You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Can you help me in booking my flight ticket from ORD to AUS?

ASSISTANT: Sure, can you share your trip dates?

USER: My trip dates will be Feb 3rd to Feb 5th.

ASSISTANT: Do you have any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Is there any airline preference?

USER: I prefer a normal cost airline.

ASSISTANT: Are there any other specifications?

USER: My depart time should be in the evening.

ASSISTANT: Please forward your name.

USER: I am Virginia Walker.

ASSISTANT: There are no flights found on your specified trip dates.

USER: No problem, thank you.

ASSISTANT: Thank you for availing us.