You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Please book a fight ticket from DFW to PHL.

ASSISTANT: Sure, please share your planned travel dates?

USER: My trip dates are 08/26 and 08/28.

ASSISTANT: Do you have any connection limit?

USER: I am comfortable to travel with a single connecting flight.

ASSISTANT: Any other preferences?

USER: My depart time should be in morning time.

ASSISTANT: Can I have your name please?

USER: I am Samantha Perez.

ASSISTANT: Sorry, no flights found with your given details.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for opting us.