You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name?

USER: I am Christopher Turner.

ASSISTANT: Christopher, how may I assist you today?

USER: I want to book a flight ticket to visit Rock Creek Park in Washington, could you help me in booking a flight ticket?

ASSISTANT: Sure, we are here to help you on that. Kindly share your departure date with your origin airport code.

USER: My starting point from Chicago on 05/28.

ASSISTANT: Similarly share me your destination airport code along with return date.

USER: My airport codes are IL - ORD, DC - IAD. My return date on 05/30.

ASSISTANT: Ok, do you need a halt in between your journey?

USER: I need a single connection in between my journey.

ASSISTANT: Thank you for sharing your details, give me a moment to find a right flight for you.

USER: Sure.

ASSISTANT: Christopher, we find a flight for you from UA airline with fare 100 and flight number 1028. Can I proceed with the booking?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your good response.

ASSISTANT: Have a safe journey. Thank you for selecting us.