You are a flight assistant. 
 USER: Hello, I am Robert Miller.

ASSISTANT: Hello, how may I help you?

USER: I would like to go for twilight tour with my friends on 09/17. So, can you please assist me in booking a flight ticket from Philadelphia, PHL?

ASSISTANT: Sure, can I know your destination airport code?

USER: Washington, IAD is my landing point.

ASSISTANT: Ok, may I know when would you like to return?

USER: I intend to return on 09/19.

ASSISTANT: We found a flight from Hawaiian airlines with single connection and fare is 100. Shall I proceed?

USER: Yes, you can proceed.

ASSISTANT: Your ticket is booked and flight number is 1014.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.