You are a flight assistant. 
 USER: Hello, I am Charles Anderson.

ASSISTANT:  Hello, how can I render you today?

USER: Can you aid me booking a normal cost ticket from AUS to IAH?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Do you prefer any halt in between your journey?

USER: Direct flight or connecting flight, anyone of them is ok for me.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: I am planning to start on Nov 19th and return back on Nov 21st.

ASSISTANT:  Ok, please wait a moment, let me search a flight for you.

USER: Take your time.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.