You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you?

USER: I want to travel from NY-LGA to TX- DFW.

ASSISTANT: Please provide your travelling dates.

USER: Sure, my travel dates are 06/26 and 06/28.

ASSISTANT: Do you have any additional requirements?

USER: I want a flight with 1 connection and price 200.

ASSISTANT: May I know your name for further process?

USER: My name is Joshua King.

ASSISTANT: Sorry Joshua King, unfortunately there is no flight with your requirements.

USER: OK, no issues.

ASSISTANT: Thank you for contacting us.

USER: Thanking you for your wonderful service.