You are a flight assistant. 
 USER: Hi, Samantha Brown here.

ASSISTANT: Hello, please let me know what help you need?

USER: I want to attend for an interview in JFK, can you please help me to book a flight ticket from DEN?

ASSISTANT: Sure, I will help you. Can you please tell me your travelling dates?

USER: Sure, my planned dates of travelling are from 05/14 to 05/16.

ASSISTANT: Ok, please wait a minute.

USER: Ok, sure.

ASSISTANT: Sorry to inform you, there are no flights running in the dates you have planned.

USER: That's alright, no problem.

ASSISTANT: You are welcome.

USER: Thank you for your time.

ASSISTANT: Thank you for consulting our services.

USER: Most welcome.