You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am planning for a trip from LAX to JFK, can you help me over that?

ASSISTANT: May I know your trip dates?

USER: Ok, my planned dates are from Feb 13 to 15.

ASSISTANT: Do you have any other preferences?

USER: I need a connecting flight.

ASSISTANT: Can I know your name?

USER: Sure, I am Ruth Martinez.

ASSISTANT: There is a flight of United airline, flight number 1020 with the fare of 100. Can I proceed?

USER: Please book it.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us.