You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I  assist you?

USER: I would like to attend and celebrate my Mother's birthday in New York, NY - JFK. Can you book a flight ticket from Denver, CO - DEN?

ASSISTANT: Sure, may I know your travelling dates?

USER: My trip dates are 06/15 - 06/17.

ASSISTANT: Thank you for sharing your details.

USER: Ok.

ASSISTANT: There is no flight found matching your requirements.

USER: Not an issue.

ASSISTANT: May I know your good name?

USER: Thank you. Deborah Campbell is my name.

ASSISTANT: Thank you.