You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I guide you?

USER: I am  Virginia Collins. I am planning to travel from DFW to AUS, can you help in that?

ASSISTANT: Sure, can you share your journey dates?

USER: My date of travelling on 07/04 to 07/06.

ASSISTANT: Give me a minute. Sorry, there is no flight on your requested dates.

USER: That's ok. Thank you for your help.

ASSISTANT: Thank you for reaching us.