You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Patricia Collins here.

ASSISTANT: How can I guide you at this moment?

USER: I would like to travel from DEN to JFK, can you please check is there any flight available for me on those locations?

ASSISTANT: Sure, I will help you with this. Can you please provide your journey dates to proceed further?

USER: Thank you for considering my request, my departure is on 05/29 and please book my return ticket also on 05/31.

ASSISTANT: Wait a moment please.

USER: Sure, take your time.

ASSISTANT: Patricia Collins, there are no flight services available on this route on your provided dates.

USER: Oh! Sad to hear that. Anyway, I will manage my journey to go there.

ASSISTANT: Thank you for contacting us.

USER: Thank you for the information.