You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Can you guide me in booking my flight ticket from DFW to AUS?

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates?

USER: My trip dates will be Oct 25th to Oct 27th.

ASSISTANT: May I know your name?

USER: I am Jessica Baker.

ASSISTANT: Do you have any other specifications?

USER: No, thank you.

ASSISTANT: Ok, wait for some time.

USER: Ok.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: Its ok, thank you.

ASSISTANT: Thanks for approaching us.