You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you help me to book a ticket from IAD to AUS?

ASSISTANT: Can you please share your travel dates that you have planned?

USER: Ok, please can you help me to book a ticket for the dates Jan 28 and 30 respectively?

ASSISTANT: Do you prefer any lay by in between journey?

USER: Ok, please book a ticket for a flight which is having a single connection limit.

ASSISTANT: May I know your name?

USER: My name is Amanda Hall. Can you check for a direct flight, I have reach my destination as soon as possible?

ASSISTANT: Sure. Is there any another specifications on your trip?

USER: Yes, I need a flight which depart during evening.

ASSISTANT: Please wait a moment.

USER: Ok, please take your own time.

ASSISTANT: Sorry Amanda Hall, there are no direct flights based on your routes.

USER: That is ok, thank you for assisting me.

ASSISTANT: Thanks for reaching us.