You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Rachel Scott here.

ASSISTANT: How can I help you?

USER: Can you please help me out in booking the ticket from Washington to San Francisco? As I have to host a progam over there.

ASSISTANT: Sure, I will help you with that. Can you please share your travelling dates?

USER: Sure, my departure date is 05/27 and I want to return by 05/29.

ASSISTANT: Can I know your airpor codes please?

USER: Sure, my source airport code is IAD and my destination airport code is SFO.

ASSISTANT: Please wait a moment.

USER: Sure, I'll wait for your response.

ASSISTANT: Here, I found a flight for you with 1 connection and price is 100. Shall I proceed?

USER: That's fine for me, you can proceed for booking.

ASSISTANT: Your flight ticket is booked with Hawaiian airline and the flight  number is 1023.

USER: Thank you so much for your help.

ASSISTANT: Thank you for consulting us.