You are a flight assistant. 
 USER: Hi, I am Alexander Gonzalez.

ASSISTANT: Hello, How may I help you?

USER: I would like to make a flight reservation from DC - DCA to attend my parent's wedding anniversary in WA - SEA.

ASSISTANT:  Sure, I am blissful to help you. Kindly mention your travelling dates?

USER: My travelling dates are from 09/26 to 09/28.

ASSISTANT: Do you have any more requirements?

USER: Yes, I need a connecting flight.

ASSISTANT: Ok, wait for a minute, I will revert you with the availability.

USER: Sure.

ASSISTANT: Thanks for your time. We are unable to find a flight on your preferred dates.

USER: Ok, no problem. Thanks for your best service.

ASSISTANT: Thank you for approaching us, Have a great day.