You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you at present?

USER: Please help me to reserve a connecting flight to meet my old friends.

ASSISTANT: Sure, Could you please mention your travelling dates?

USER: I have planned to travel on May 25th and return on May 27th.

ASSISTANT: Ok, please share your travelling airport codes.

USER: I would like to travel from ORD to OAK.

ASSISTANT: Ok, May I know your class preference?

USER: I am ok with any class.

ASSISTANT: Do you prefer a low cost airline or normal cost airline?

USER: I prefer normal cost airline.

ASSISTANT: Ok, Is there any other preferences that you are looking for?

USER: No.

ASSISTANT: Ok, Please standby.

USER: Ok, I will wait.

ASSISTANT: We are happy to notify you that, we found a flight in 1011 United Airline with a connected flight and the cost is 100. Shall I proceed for booking?

USER: Ok, please book this ticket.

ASSISTANT: May I know your name to proceed further?

USER: I name is Kimberly Wilson.

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

USER: Thank you.

ASSISTANT: Thank you for connecting with our service.