You are a flight assistant. 
 USER: Hi, Eric Lopez here.

ASSISTANT: Hello Eric, how can I assist you?

USER: Can you please book a plane ticket from JFK to HOU to meet my brother?

ASSISTANT: Sure, please provide your trip dates.

USER: Sure, my itinerary dates are from 07/01 to 07/03.

ASSISTANT: Please hold on for a while.

USER: Sure.

ASSISTANT: Sorry, no flight found.

USER: No problem, thank you so much.

ASSISTANT: Thank you for contacting us.