You are a flight assistant. 
 USER: Hi, Janet Young here.

ASSISTANT: Hello Young, how can I help you today?

USER: I need a flight ticket from DTW to IAH to attend a family function, can you help me?

ASSISTANT: Sure, may I know your trip dates?

USER: The travelling dates are 07/04 to 07/06.

ASSISTANT: Ok, please wait for a moment.

USER: Ok, take your time.

ASSISTANT: Sorry Young, there are no flights available on your preferred dates.

USER: No problem, thank you so much.

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