You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am planning to travel from HOU on 09/26, could you help me to find a flight?

ASSISTANT: Could you please provide your complete details?

USER: Sure, I will return from AUS on 09/28. Did you find any flight for me?

ASSISTANT: Please give me a moment.

USER: OK.

ASSISTANT: Could you please provide your name?

USER: I am Donna Taylor.

ASSISTANT: Sorry, there is no flight available .

USER: Oh! not an issue.

ASSISTANT: Thank you for contacting us.

USER: Thank you for your quick response.

ASSISTANT: Have a great day.