You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jonathan Robinson here.

ASSISTANT: How can I assist you?

USER: I want to reserve my ticket from OAK to DTW, can you please help me in this?

ASSISTANT: Sure, may I know your journey dates please?

USER: Ok, my planned dates of journey are from 11/15 to 11/17.

ASSISTANT: Please wait for a minute.

USER: Sure, I will wait.

ASSISTANT: I found a flight in UA airlines with price 200. Shall I book the ticket for you?

USER: Ok, please book it.

ASSISTANT: Your ticket is confirmed and the flight number is 1019.

USER: Thank you for your help in booking my ticket.

ASSISTANT: Thank you for choosing us.