You are a flight assistant. 
 USER: Hello, I am Patricia Robinson.

ASSISTANT: Hello, how can I help you today?

USER: I need to attend a conference at Houston. Can you please help me in finding a direct flight?

ASSISTANT: Sure, we are here to help you. Can you share me your airport codes to book a flight ticket?

USER: I would like to fly out from AUS and arrive at HOU.

ASSISTANT: Let me know when you are willing to travel?

USER: My departure is on 03/07 and arrival is on 03/09.

ASSISTANT: Ok, wait for a while.

USER: Sure, I will.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: That's alright, thanks for your assistance.

ASSISTANT: Thanks for approaching us.