You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Laura Campbell here.

ASSISTANT: Laura, how may I render you?

USER: I need your help in booking of a flight ticket from DCA to SFO for an important business meeting, can you please help me out with booking of a flight ticket on those locations?

ASSISTANT: Sure, I am here to help you. Can you provide your itinerary dates?

USER: Thank you, I am planning to move on 05/17 and please book my return ticket also on 05/19.

ASSISTANT: Please wait for a while.

USER: Ok, take your time.

ASSISTANT: Connecting flight is provided by Hawaiian airlines with flight number 1028 and ticket costs you only 100 in economy class.

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

ASSISTANT: Your ticket is reserved, have a safe and happy journey.

USER: Thank you for your great help.

ASSISTANT: Thank you for approaching us.

USER: Welcome.