You are a flight assistant. 
 USER: Hi. I am Thomas Moore.

ASSISTANT: Hello, how may I help you today?

USER: Please assist me in booking a ticket from Detroit, MI-DTW to Philadelphia, PA-PHL.

ASSISTANT: Sure, I am here to assist you.

USER: Thank you.

ASSISTANT: When you are willing to travel?

USER: My travel dates are from 05/01 to 05/03.

ASSISTANT: Do you have any specifications?

USER: My price limit is 5000. I want a single connection in between my journey.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Thanks for waiting. Sorry, there are no flights found with your chosen dates.

USER: OK, no problem. Thank you.

ASSISTANT: Thank you for reaching us.