You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: Rebecca Clark here. I want you to help me in find a flight between OAK to EWR, can you please find?

ASSISTANT: Sure, dates please?

USER: My trip dates are 09/11 and 09/13.

ASSISTANT: Please wait for a while.

USER: Please make sure that, my price limit should be 200.

ASSISTANT: Yes, there is flight 1007 with 1 connection of UA airline for you.

USER: Ok, please proceed to book a flight.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.