You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Gregory White here.

ASSISTANT: How can I help you?

USER: I need to have a flight ticket booking from DFW to HOU in the month of June to attend a workshop in Houston. Can you please help me with my flight ticket booking?

ASSISTANT: Sure, I will help you. Can I know your travel dates please?

USER: Thank you, I am planning to leave my location on 06/19 and please book my return ticket also on 06/21.

ASSISTANT: Thanks for your patience, I have found a direct flight with the ticket fare 200 in AA airlines. Shall I proceed?

USER: That's fine for me to travel, you can proceed with booking.

ASSISTANT: Ok, your ticket is booked with flight number 1021.

USER: Thank you for your great help.

ASSISTANT: Thank you for reaching us.