You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to travel from IAD to AUS. Can you book a flight ticket for me?

ASSISTANT: Sure, may I know your planned trip dates?

USER: I would like to fly in the flight on Mar 09 and Mar 11.

ASSISTANT: Do you prefer either connecting flight or direct flight?

USER: I am looking for a flight with 1 connection.

ASSISTANT: Is there any class preference?

USER: No, but I prefer normal-cost airline.

ASSISTANT: Kindly, mention your arrival and depart timings.

USER: I don't have any.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: On whose name ticket should be reserved?

USER: Emma Mitchell.

ASSISTANT: Please be on hold.

USER: Ok.

ASSISTANT: Sorry, there are no flights found on your specified trip dates.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thank you for reaching us.