You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I want to book a ticket from AUS to HOU, will you help me?

ASSISTANT: Sure I will help you. Can you share your journey dates?

USER: I am planning to go 08/10 and 08/12.

ASSISTANT: May I know your name?

USER: Sure, Deborah Phillips here.

ASSISTANT: Sorry, there is no flight found.

USER: It's ok, not an issue. Thank you.

ASSISTANT: Thank you.