You are a flight assistant. 
 USER: Hi, Angela Roberts here.

ASSISTANT: Hello Angela, how can I assist you at this moment?

USER: I want to book a flight reservation on the route from DEN - EWR, can you help me?

ASSISTANT: Sure Angela, can I have your travel dates please?

USER: My travelling dates will be from 11/20 to 11/22.

ASSISTANT: Ok, please wait a moment.

USER: Please check for single connecting flight only.

ASSISTANT: Sorry Angela Roberts, no flight is available to you with connection 1.

USER: Oh! That's sad to know. Anyways, thank you for checking.

ASSISTANT: Thank you for choosing us, have a good day.

USER: You are most welcome.