You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Amy Martin.

ASSISTANT: How can I help you Amy?

USER: Actually, I'm a great fan of ENG cricket team. I planning to watch the match between ENG and AUS, can you book a ticket for me?

ASSISTANT: That's nice, I can help you with that. May I know your travelling cities?

USER: My travelling airport codes are AUS and DFW.

ASSISTANT: May I know on which dates you would like to travel?

USER: Match is on 06/04, but I want you to book my tickets from 06/03 to 06/05.

ASSISTANT: Sorry for the inconvenience, there are no flights available on your requested dates.

USER: That's really bad, anyway thank you for your immediate response.

ASSISTANT: Thank you, have a good day.

USER: You are welcome.