You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: William Walker here, can you please help me in booking the ticket from DCA to ORD?

ASSISTANT: Sure, may I know when you have planned to travel?

USER: My journey dates are 10/11 and 10/13.

ASSISTANT: Ok, do you need any connection?

USER: Yes, I need 1 connection in between.

ASSISTANT: Ok, please share your name.

USER: I have already given that my name is William Walker.

ASSISTANT: Thank you, sorry to say no flights found with your details.

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

ASSISTANT: Thank you for reaching us, have a nice day.