You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I am Edward Evans. I want to book a flight ticket from DFW to PHL, can you help me with booking a connecting flight?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travelling dates are 07/02 and 07/04.

ASSISTANT: Do you have any class preference?

USER: No, I am ok with any class.

ASSISTANT: Edward Evans, there is a flight available with price 100 and the connection is 1 with AA airline. Would you like me to proceed with the booking?

USER: Please book that ticket if the depart and return time is evening.

ASSISTANT: I am sorry to inform you that there is no flight available during evening time.

USER: That's ok, thank you for the response.

ASSISTANT: You are welcome. Thank you for contacting us.