You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you today?

USER: My name is Melissa Miller. I have a business meeting in San Francisco. Can you help me for booking a flight ticket from OAK to SFO?

ASSISTANT: Sure, please provide your travelling dates?

USER: My travelling dates are Feb 19 and Feb 21.

ASSISTANT: Sure, please wait for some time.

USER: Sure, I will wait for your response.

ASSISTANT: We found a AA airline with fare of 200 and  a halt in between the journey matches your schedule.

USER: Ok, please proceed for booking.

ASSISTANT: Shall I proceed with booking?

USER: Ok.

ASSISTANT: Your ticket has been confirmed with flight number 1021.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.