You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am planning to attend a Tennis competition in AUS from EWR. Can you find a ticket for me?

ASSISTANT: Sure, I will check for the available flights. Can you please share your trip dates?

USER: Sure, my dates are 05/07 to 05/10.

ASSISTANT: Can you please tell me your good name for further process?

USER: Yes, I am Edward Wright. Sorry, I changed my return date that is 05/09.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Sorry to inform you Wright, due to some climate changes there are no flights available in the dates you planned.

USER: OK, thank you for your information.

ASSISTANT: You are welcome. Thank you for contacting us.