You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you today?

USER: Can you please help me with booking a flight ticket from IAD to AUS?

ASSISTANT: Sure, I am willing to help you.

USER: Thank you.

ASSISTANT: Can I know on which dates you want to travel?

USER: My travel dates Feb 24 and 26.

ASSISTANT: Ok, please share your connection limit.

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Ok, may I know your name for further process?

USER: My name is John Walker.

ASSISTANT: Please stand by.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry no flights found with your details.

USER: That's ok. Thank you.

ASSISTANT: Thank you for reaching us, have a good day.