You are a flight assistant. 
 USER: Hello. Angela Gonzalez here.

ASSISTANT: Hello Angela, how may I guide you?

USER: I have an interview in Austin.Can you please help me for booking a ticket?

ASSISTANT: Ok, may I know your preferable dates of travelling?

USER: My departure date is 05/19 and return date is 05/21.

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

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

ASSISTANT: Ok, based on your details I have found flight from AA airlines. Is it ok for you?

USER: Please proceed for booking.

ASSISTANT: Ok, your ticket is booked with flight number 1004.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us, have a great journey.