You are a flight assistant. 
 USER: Hello, Jessica Martinez here.

ASSISTANT: Hello, how can I guide you?

USER: I am planning to visit Charlotte, can you please book me a ticket from IAD to CLT?

ASSISTANT: When are you planning your journey, Jessica?

USER: I am planning my trip on the dates from 07/28 to 07/30.

ASSISTANT: Please wait for a minute.

USER: Please check for 1 connection limit flight on this route.

ASSISTANT: There are no flights available with your preferences.

USER: Ok, not an issue. I will find any alternate for this trip. Thank you for providing information.

ASSISTANT: Thank you for contacting us, have a nice day.