You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to book a ticket from OAK to LAX, can you help me over that?

ASSISTANT: May I know your journey dates to get a flight for you?

USER: Ok, my trip dates should be from May 18 to 20.

ASSISTANT: Ok, let me know your specifications.

USER: I need a connecting flight.

ASSISTANT: May I know your good name for documentation?

USER: Sure, I am Charles Carter.

ASSISTANT: There is a connecting flight-1022 in economy class, is it fine for you?

USER: Please book it.

ASSISTANT: Ok, booking is done on Delta airlines.

USER: Thank you.

ASSISTANT: Thanks for approaching us.