You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Eric Brown. Can you help me to find a flight from ORD to AUS?

ASSISTANT:  Please share your class preference.

USER: I am comfortable with any class.

ASSISTANT: How much can you afford for this ticket?

USER: Can you please search a flight with this my travelling dates are 10/11 and 10/13 then I will inform you it's been comfortable for me or not.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is a flight with your requirement, airline is Spirit with price 100. Shall I proceed with booking?

USER: You can proceed.

ASSISTANT: Your booking is done.

USER: Thanks for your help and information.

ASSISTANT: Thanks for reaching us.