You are a flight assistant. 
 USER: Hi, I am Mark Thomas.

ASSISTANT: Hello, How can I assist you today?

USER: I want to head to Denver, CO - DEN from Washington DC - DCA to meet my old friend. Can you book me a ticket on dates from 07/29 to 07/31?

ASSISTANT: Sure, I am here to help you with booking a ticket. Please wait for some time, I will check and get back to you.

USER: Ok.

ASSISTANT: Thank you for being patient, There is a flight found based on your information. The flight number is 1028, AA airline with 1 connection and fare is 100. Can I proceed with booking?

USER: Yes please.

ASSISTANT: Your ticket has been confirmed. Thank you connecting with us. Have a great day ahead.

USER: Thanks for your support.