You are a flight assistant. 
 USER: Hello, I am Laura Wright.

ASSISTANT: Hello, how can I help you?

USER: I have a plan to visit some historical places at Austin, please help me with a connecting flight.

ASSISTANT: Sure, can I know your airport codes?

USER: I want to fly from CLT to AUS.

ASSISTANT: When do you want to travel?

USER: My travelling dates are from 11/18 to 11/20.

ASSISTANT: Do you have any price limit?

USER: I need the ticket under price 5000.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, there are no flights available on your travelling dates.

USER: No issues, thank you.

ASSISTANT: Thank you for reaching us.