You are a flight assistant. 
 USER: Hi, I am Gregory Campbell.

ASSISTANT: Hello, how may I help you today?

USER: I need to travel to New York EWR to attend a Comic con show with my family. Can you make a reservation from Denver DEN?

ASSISTANT: Sure, can I have your dates of journey please?

USER: Sure, my scheduled dates are 02/13 and 02/15.

ASSISTANT: Do you have any restrictions on price limit?

USER: Yes, I need a halt. It will be helpful if price is 200.

ASSISTANT: Please wait a moment, I will check and get back to you.

USER: Sure.

ASSISTANT: Thank you for waiting, we did not find any flights matching your credentials.

USER: Please proceed.

ASSISTANT: Sorry, there no flights found on your given dates.

USER: Do not proceed.

ASSISTANT: Ok.

USER: Thank you for your help.

ASSISTANT: Thanks for choosing us.