You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Daniel Anderson. I want to book a ticket from DTW to DFW to attend my friend's birthday party, can you help me in booking?

ASSISTANT: Sure, will you share me your planned journey dates?

USER: I am departing on Dec 12 and return on Dec 14.

ASSISTANT: Is there any class preference?

USER: I am ok with any class.

ASSISTANT: Do you require any connection in between your journey?

USER: I want a flight with connection limit 1.

ASSISTANT: Do you have any other specification?

USER: I am planning to depart in evening time and return in morning time.

ASSISTANT: Please wait a minute.

USER: Sure, take your time.

ASSISTANT: There are no flights found with your requirements.

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

ASSISTANT: Thank you for reaching us.