You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I am Dennis Gonzalez. I want to book a flight ticket from SFO. Can you help me in booking to IAD?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My journey dates are from Jan 21 to Jan 23.

ASSISTANT: Do you have any limitations?

USER: I need a connecting flight under the range of 5000.

ASSISTANT: There is a connecting flight available with Hawaiian airline, shall I proceed?

USER: Ok, proceed.

ASSISTANT: Your booking is done with flight number 1016. Happy Journey.

USER: Thank you.

ASSISTANT: You are welcome, have a nice day.