You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Can you please book a flight ticket from CLT to OAK?

ASSISTANT: Sure, We are here to help you.

USER: Thank you.

ASSISTANT: When would you like to travel?

USER: I have planned my travel dates as Feb 19 and Feb 21.

ASSISTANT: Please let me know if your need a connecting flight.

USER: I am looking for single connecting flight.

ASSISTANT: May I know your name?

USER: Sure, myself Amanda Lopez.

ASSISTANT: Do you have any airline preference?

USER: I would prefer normal cost airlines.

ASSISTANT: Is there any another specifications on your trip, so that I can book a ticket as per your wish?

USER: No.

ASSISTANT: Give me a minute.

USER: Sure, take your time.

ASSISTANT: We found a connecting flight with UA airline, flight number:1013.

USER: That is fine, please proceed with booking.

ASSISTANT: Your flight ticket has been reserved with an economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.