You are a flight assistant. 
 USER: Hello,. I am Frank Lopez.

ASSISTANT: Hello, how can I give assistance to you?

USER: I would like to attend a seminar on social issues in Oakland, OAK. Can you please book a fight ticket from Los Angeles, LAX?

ASSISTANT: Sure, we are mirthful to help you for booking. Let me know your planned journey dates.

USER: My journey dates are, start on 05/01 and need to catch return flight on 05/03.

ASSISTANT: Ok, Is there any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: Sure, please share your connection limit.

USER: I need a connection in between journey.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a flight in 1004 Delta airline with a fare of 100 and single connection. Would you like me to proceed?

USER: Ok, proceed.

ASSISTANT: Sure, your ticket has been reserved in economy class.

USER: Thanks for your service.

ASSISTANT: Thank you for choosing us.