You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I need to travel from OAK to ORD, can you help me?

ASSISTANT: Sure, please provide your trip dates.

USER: My trip dates are 04/26 and 04/28.

ASSISTANT: May I know your name?

USER: I am Elizabeth Harris.

ASSISTANT: Do you prefer a direct or connecting flight?

USER: I am ok with any flight.

ASSISTANT: In which class do you want to travel?

USER: I just need a flight to travel.

ASSISTANT: Please hold on for a while.

USER: Sure.

ASSISTANT: Delta airlines with flight 1009 is providing a connecting flight and ticket costs you 100 in economy class.

USER: Yes, proceed with that.

ASSISTANT: Your ticket is confirmed Elizabeth Harris.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.