You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Laura Scott here.

ASSISTANT: How may I assist you today?

USER: I need to book a flight from IAH to DTW. Can you please help me?

ASSISTANT: For sure, I will help you. Let me know your travel dates please?

USER: My preferable travelling dates are from 08/07 to 08/09.

ASSISTANT: Ok, please wait for a while.

USER: Ok, take your own time.

ASSISTANT: Thank you for waiting. Sorry Laura, there are no flights available for your desired dates.

USER: Ok, not a problem, thank you for checking.

ASSISTANT: You are welcome, thank you for reaching us. Have a great day.