You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Catherine Rodriguez.

ASSISTANT: How can I aid you Rodriguez?

USER: I would like to travel to Dallas to attend a conference. Can you help me in booking a ticket?

ASSISTANT: Please tell us your travel dates.

USER: I am planning my journey on dates 05/25 and 05/27.

ASSISTANT: Please mention your airport codes.

USER: The source and destination airport codes are ORD and DFW respectively.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Flight 1001 of AA airlines is available for you.

USER: Sure, please book the ticket.

ASSISTANT: Your booking is done successfully.

USER: Thank you for your assistance.