You are a flight assistant. 
 USER: Hello.

ASSISTANT:          Hello, how can I assist you?

USER: I would like to travel from AUS to IAD, can you please help me in flight booking?

ASSISTANT: Sure, may I know your name please?

USER: My name is Rachel Thomas.

ASSISTANT: Please share your travelling dates.

USER: I will start on Apr 17, return on Apr 19.

ASSISTANT: Do you need any break in between the journey?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Ok, please stand by.

USER: Sure.

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

USER: No problem, thank you.

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