You are a flight assistant. 
 USER: Hello. I am Brenda Evans.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to attend music concert at HOU, can you please help me with booking a flight ticket from JFK?

ASSISTANT: Sure, can you please share your travelling dates?

USER: Sure, I would like to take off on Mar 18 and return on Mar 20.

ASSISTANT: Do you have any specifications?

USER: I would like to depart on morning time.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.