You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: Betty Wright here, can you please help me out in booking the ticket from ORD to IAH? As I'm planning to go for kite festival at Houston.

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: Sure, my departure date is 06/14 and my return date is 06/16.

ASSISTANT: Sorry, there is no flight on your requested travelling dates.

USER: That's ok, I'll try to reach my destination with some other mode of transport. Thank you anyways.

ASSISTANT: Thank you for approaching us, have a great day.