You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: Sarah Miller here. I want to travel from OAK to SEA, can you help me to book a flight ticket?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My trip will start on 12/03 and return on 12/05.

ASSISTANT: The UA airline with flight number 1003 is available having fare as 100 and connection as 1, is it ok for you?

USER: Proceed to booking.

ASSISTANT: Ok, your reservation is confirmed.

USER: Thanks for helping me.

ASSISTANT: You are welcome.