You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Elizabeth Brown here.

ASSISTANT: Yes, Brown.

USER: I am looking for a flight ticket with price below 200 for my vacation in Oakland. Can you book it?

ASSISTANT: Sure, I'll definitely help you in that. May I know your travel dates please?

USER: My travel dates for my journey would be from 07/14 to 07/16. I need a connecting flight.

ASSISTANT: Fine, can you please share your airport codes?

USER: My airport codes for my journey would be from DFW to OAK.

ASSISTANT: Fine, please wait for a while.

USER: Sure.

ASSISTANT: Delta airlines is having a flight with travel charge of 100, shall I proceed for booking?

USER: Yes, I am happy with the flight ticket fare you can proceed.

ASSISTANT: Your ticket has been booked with flight-1025, have a safe journey.

USER: Thank you.