You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I need to book a flight ticket from Oakland to Detroit to narrate a story to an actor. Can you help me book a flight within the price of 5000?

ASSISTANT: Sure. May I know your name?

USER: My name is Jacob Hernandez.

ASSISTANT: Can you please let me know your travelling dates?

USER: I intend to fly on 07/13 and return on 07/15.

ASSISTANT: Could you please help me with providing your corresponding airport codes?

USER: My journey is from OAK to DTW.

ASSISTANT: We found a UA airline, flight number:1003 and the price is 100.

USER: Proceed for booking with this airline.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you.