You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Jonathan Lewis here. Reserve a flight ticket from ORD to DEN, can you help me?

ASSISTANT: Sure, I am here to help you. Could you please let me know your travel dates?

USER: Sure, my itinerary dates are 11/15 and 11/17.

ASSISTANT: Flight-1004 is available with JetBlue airlines, is that ok for you?

USER: Yes, please book my ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you so much.

ASSISTANT: You are most welcome.