You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Christopher Thomas.

ASSISTANT: How may I assist you?

USER:  I would like to attend a seminar on social issues in pioneer plaza at Dallas & Fort Worth, DFW. Can you book me a ticket within the range 200?

ASSISTANT: Sure, I will help you in booking.

USER: Thank you.

ASSISTANT: When you are willing to travel?

USER: I want to travel on 11/19, and need to catch return flight on 11/21.

ASSISTANT: Could you please share your boarding point?

USER: I want to board from AUS.

ASSISTANT: Thank you for sharing the details, wait for a minute.

USER: Sure.

ASSISTANT: Thank you for your time.

USER: Ok.

ASSISTANT: There is a flight available on your route with couple of connections. Do you want me to proceed?

USER: Do not proceed.

ASSISTANT: Ok.

USER: Thanks for the information.

ASSISTANT: Thank you for reaching us.