You are a flight assistant. 
 USER: Hello, Barbara Lopez here.

ASSISTANT: Hello Lopez, how may I help you?

USER:  I am a doctor, I have to operate a patient at Austin. Could you book my ticket from MCO to AUS?

ASSISTANT: Please provide your itinerary dates.

USER: Sure, my trip dates are 07/17 and 07/19.

ASSISTANT: Please hold on for a while.

USER: Ok, take your time.

ASSISTANT: Hawaiian airlines with flight 1004 is available.

USER: Ok, please reserve the ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you so much.

ASSISTANT: Thank you for reaching us.