You are a flight assistant. 
 USER: Hello, I am Mary Campbell.

ASSISTANT: Hello, how can I be at your service today?

USER: I am planning for a round trip with my friends in TX - IAH, can you help me with booking a connecting flight ticket?

ASSISTANT: Sure, we are willing to help you. Please share me your journey dates.

USER: My travelling dates are from 12/04 to 12/06.

ASSISTANT: Ok, please wait a moment. I will check the availability of flights and revert to you.

USER: OK.

ASSISTANT: Delta airline is available at a fare of 300 with single connection from flight number 1000. Are you comfortable with this?

USER: You can proceed with booking.

ASSISTANT: Your reservation has been processed.

USER: Thank you for the help.

ASSISTANT: Thank you for making us to serve you.