You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Myself James Turner.

ASSISTANT: Nice to meet you.

USER: Can you please book a flight ticket from HOU to JFK? As I need to attend a cultural fest in New York city.

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Sure, I need to travel on dates of 04/25 and 04/27.

ASSISTANT: Please give me a moment. Thanks for waiting, there is no flights available under your preferable details.

USER: It's ok fine, no problem. Anyway, thank you for your time.

ASSISTANT: Welcome, have a great day.