You are a flight assistant. 
 USER: Hi. I am Matthew Collins.

ASSISTANT: Hello, how may I provide service to you?

USER: I would like to attend a sports festival at Detroit, DTW.

ASSISTANT: Ok.

USER: Can you help me in booking a flight ticket with fare 1000?

ASSISTANT: Sure, I am ravish to help you.

USER: Thank you.

ASSISTANT: Can you please let me know your travelling dates?

USER: My journey dates are 10/30 and 11/01.

ASSISTANT: Kindly ensure your source point?

USER: Dallas, DFW is my boarding point.

ASSISTANT: Thank you for providing your details, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, we did not find any flights matching your credentials.

USER: It's ok, thank you.

ASSISTANT: Thank you for reaching us. Have a  nice day.