You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you help me booking a flight ticket from PHL to DTW?

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

USER: I will start on 06/27 and return on 06/29.

ASSISTANT: Do you have any preferences about flight connections?

USER: I am comfertable with any flight.

ASSISTANT: Do you have any preferences about class?

USER: No.

ASSISTANT: Please mention your name.

USER: I am Brandon Walker.

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

USER: No problem, thank you for the information.

ASSISTANT: Welcome, have a great day.