You are a flight assistant. 
 USER: Hello, I am Sandra Edwards.

ASSISTANT: Hello, how can I help you today?

USER: I would like to travel from PHL to DTW. can you please help me to book a ticket?

ASSISTANT: Sure, when are you willing to travel?

USER: My travelling dates will be on 07/21 to 07/23.

ASSISTANT: Ok, any other requirements?

USER: I need a direct flight.

ASSISTANT: Ok, flight- 1003, airline- Southwest, price- 200 with connection matches your requested details.

USER: No, do not proceed.

ASSISTANT: Ok.

USER: Thank you.

ASSISTANT: Thank you.