You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you?

USER: I am Janet Roberts. I want to go for a round trip with my family to Detroit. Can you help me in my booking?

ASSISTANT: Sure, may I know your journey code?

USER: My airport code is Detroit, MI - DTW.

ASSISTANT: Kindly provide your travelling dates.

USER: I would like to start my journey on 10/01. I would like to return on 10/03.

ASSISTANT: Please give me a minute.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting, sorry to inform you that unfortunately there is no flights available by the given details.

USER: Not an issue. Thank you for your response.

ASSISTANT: Thanks for availing us.