You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to travel from LAS to SFO. Can you help me to book a flight ticket?

ASSISTANT: Can you give me your trip dates?

USER: I want to fly in the flight on May 07 and May 09.

ASSISTANT: Do you need any connections?

USER: I am looking for a connecting flight.

ASSISTANT: Are there any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: I am Kathleen Allen.

ASSISTANT: Connecting flight number 1027 with price 100 in economy class is available. Is it ok?

USER: Yes, proceed to booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping me out.

ASSISTANT: Thank you for reaching us.