You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Margaret Rodriguez.

ASSISTANT: Sure, I will help you out.

USER: I want to book a ticket from EWR to DEN, to see the place Denver Botanic Gardens.

ASSISTANT: May I know your travelling dates please?

USER: Sure, my trip starts on 03/03 and 03/05.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there are no flights found. Thank you for reaching us.

USER: It's ok, thanks for checking.