You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please check for the flights from PHL to DFW for my business rip?

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

USER: My journey dates are from Oct 7 to Oct 9.

ASSISTANT: Do you have any specifications about flight connections?

USER: I need an economy class flight with 1 connection.

ASSISTANT: Do you have any preferences about class?

USER: I have already mentioned.

ASSISTANT: Please mention your name.

USER: Myself Rachel Martin.

ASSISTANT: There are no flights found under your preferable details.

USER: Oh! That's fine. Anyways, thank you for checking.

ASSISTANT: Welcome, have a great day.

USER: Most welcome.