You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I want to fly from IAD to AUS. Can you book a ticket from that route?

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

USER: Sure, my planned travel dates are 05/22 and 05/24.

ASSISTANT: Let me know your connection limit?

USER: I want a flight with single connection.

ASSISTANT: Any other requirements to be met?

USER: Make sure that, my return time should be in the morning only.

ASSISTANT: May I know your good name?

USER: Sure, Betty Lewis here.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: No issues, thank you for the information.

ASSISTANT: Thank you for reaching us.