You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Betty Martinez.

ASSISTANT: How may I aid you?

USER: I am looking for a flight from ORD to IAD, can you help me in booking?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Sure, my planned travel dates are Aug 15 and Aug 17.

ASSISTANT: Do you need a connecting flight?

USER: Yes, my maximum connection limit should be only 1 for this journey.

ASSISTANT: May I know your specific timings of your journey?

USER: I would like to return my journey for the evening flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Betty Martinez, no flights has been found on your journey dates.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.