You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am Scott Edwards. Please book me a ticket from DTW to HOU to meet my old friends.

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates to book a flight ticket?

USER: My travel dates are from  04/23 to 04/25.

ASSISTANT: Ok, wait for some time I will check and get back to you.

USER: Ok, I will wait.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for approaching us.