You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How could I aid you today?

USER: My name is Ryan Evans. I want to book a flight from EWR to DFW, can you please help?

ASSISTANT: Sure, may I know your departure and arrival dates?

USER: I will depart on Nov 22nd and return back on Nov 24th.

ASSISTANT: Is there any class preference for you?

USER: I am comfortable in any class.

ASSISTANT: At which time you would like to start and end your journey?

USER: Please make sure my depart time should be in the morning.

ASSISTANT: We found a flight with an airline Delta of flight 1010 and cost is 200 in an economy class. Would you like me to proceed?

USER: Please proceed if this flight is with maximum one connection.

ASSISTANT: Your seat has been reserved with depart time 4:00 AM.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us help.