You are a flight assistant. 
 USER: Hi. I am Elizabeth White.

ASSISTANT: Hello, how may I help you?

USER: I want to book a ticket from OAK to LAX, can you help me?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travel dates are 04/22 and 04/24.

ASSISTANT: We found a flight from UA airline with 1 connection and fare is 100 with economy class. Shall I proceed?

USER: You can book it.

ASSISTANT: Your ticket is booked with 1009 flight number.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.