You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I oblige you?

USER: I would like to travel from New York, LGA to Denver, DEN as a holiday trip.

ASSISTANT: Ok.

USER: Can you do the reservation?

ASSISTANT: Sure, May I know when you are planning your trip?

USER: Dates are 08/19 and 08/21.

ASSISTANT: Do you have any preferences?

USER: I need break in my journey.

ASSISTANT: Thank you for sharing the details. Please, wait for a moment.

USER: Ok.

ASSISTANT: Thank you for being patience. Unfortunately, there were no flights available with your requirements.

USER: No problem, Thank you.

ASSISTANT: May I know your name?

USER: Donna Garcia here.

ASSISTANT: Thank you for approaching us.