You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I am Steven Walker from New York.

ASSISTANT: Nice meeting you Walker.

USER: Thanks, I would like to visit Washington next week, can you please book a flight ticket for me?

ASSISTANT: Sure, I am glad to help you with that.

USER: Thank you.

ASSISTANT: Can you please provide your preferable dates of travelling?

USER: I want to take off on 08/27 and confirm my return ticket also on 08/29.

ASSISTANT: Ok, may I know your origin and destination airport codes for booking?

USER: I want to fly from JFK and destination airport is DCA.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Ok. Please make sure that I want 1 halt in between my journey.

ASSISTANT: We regret to inform you that, there are no flights moving to your region with your required connections.

USER: Oh! It's ok no problem, I will go with another airline. Thank you for your information.

ASSISTANT: Thank you for approaching us, hope you have a great day.