You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Brenda Wright, can you book a flight from LAS to DFW?

ASSISTANT: I am here to help you about that. Can you please provide your planned dates of journey?

USER: Ok, please book on the dates 07/19 and 07/21.

ASSISTANT: Sorry to say this, there are no flights to your region.

USER: Thank you for the information. That is ok.

ASSISTANT: Most welcome, thank you for reaching out here.