You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: My name is Carolyn Jones. I would like to travel from DCA. Can you help me in reservation with a connecting flight?

ASSISTANT: Sure, may I know your destination code?

USER: I want to attend my family get together at AUS.

ASSISTANT: To proceed booking I need your travelling dates.

USER: My travelling dates are from 12/27 to 12/29. Price limit is 5000.

ASSISTANT: Thanks for waiting. There are no flights found on your given requirements.

USER: Ok, No problem. Thank you.

ASSISTANT: Thank you have a joyful day.