You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: My name is Ruth Martinez and I want to book the flight ticket from DFW to PHL.

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My travel dates are 09/04 and 09/06.

ASSISTANT: Do you have any specifications?

USER: I would like to return in the afternoon.

ASSISTANT: Do you have any preferences about class?

USER: No. I need a single connection flight.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Please give me a moment.

USER: Take your time.

ASSISTANT: Thanks for waiting, there is no flights found under your preferable details.

USER: Thank you for the information.

ASSISTANT: Welcome, have a great day.