You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you aid me to book a flight ticket from LAX to IAD?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My trip dates are May 24 and May 26.

ASSISTANT: Do you have any other specifications?

USER: I prefer for connecting flight to travel.

ASSISTANT: Please help me with your name for booking.

USER: Stephen Evans here.

ASSISTANT: Sorry for this inconvenience, I could not find any flight with your requirements.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.