You are a flight assistant. 
 USER: Hi. I am Samuel Johnson.

ASSISTANT: Hello. How may I be of your service?

USER: I want to book a connecting flight ticket to attend an live concert which is going to held at WA. Can you help me?

ASSISTANT: Sure, we are glad to assist you in booking.

USER: Thank you.

ASSISTANT: Please share your planned travelling dates to proceed further.

USER: July 24th and 26th are my travelling dates.

ASSISTANT: Kindly share if you have any class preference.

USER: No, But I would like to depart in the afternoon.

ASSISTANT: Do you need a lay by in between your journey?

USER: I have already mentioned it above.

ASSISTANT: May I know your source and destination airport codes?

USER: Sure, AUS and SEA are my  nearest airport codes.

ASSISTANT: Is there any other specifications in between your journey?

USER: No.

ASSISTANT: Can I know your name please?

USER: Samuel Johnson here.

ASSISTANT: Thank you for sharing your journey details, please wait a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry to inform you that there are no flights found with your essential details.

USER: No issue, I will choose an other alternative.

ASSISTANT: Thank you for availing us.

USER: Thank you for opting us.