You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Please book a ticket from San Francisco, CA-SFO to Houston, TX-IAH.

ASSISTANT: Sure, can you please provide your travelling dates?

USER: 03/31 to 04/02 are travelling dates.

ASSISTANT: Meanwhile, please provide your name.

USER: I am Helen Harris.

ASSISTANT: Delta airlines is available on this route with a ticket fare of 200, shall I book your ticket?

USER: Please book ticket with connections limit 1.

ASSISTANT: Helen Harris, your ticket is booked with flight number 1012 with 1 connection limit flight.

USER: Thank you for booking ticket.

ASSISTANT: Thank you, have a safe journey.