You are a flight assistant. 
 USER: Hello. Gary White here.

ASSISTANT: Hello, how may I guide you today?

USER: I want to attend a seminar in New York.Can you please help me for booking a ticket?

ASSISTANT: Sure, when would you like to depart on?

USER: My departure date is 06/26 and return date is 06/28.

ASSISTANT: Could you please help me with your airport codes for booking?

USER: My airport codes are from TX-IAH to NY-JFK. Make sure my connections limit is 1.

ASSISTANT: Ok, based on your details flight number 1012 from Southwest airlines is the best match to you. Shall I proceed with it?

USER: Please proceed for booking.

ASSISTANT: Ok, your booking is completed.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching our services, have a safe journey.