You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you for today?

USER: I am Thomas Johnson from New York. Can you please book a flight ticket from New York to Houston? As I have to attend a business meeting over there.

ASSISTANT: I am here to help you about that. Can you please provide your planned dates of your journey?

USER: Thank you. I need to travel on dates of 10/10 and 10/12.

ASSISTANT: Please specify your nearest airport codes.

USER: Sure, I would like to travel from EWR to IAH as these are the airports which are very much near to my travelling locations.

ASSISTANT: Please wait for sometime.

USER: Sure, take your time to check.

ASSISTANT: I am sorry to say this Johnson, there are no flights which can travel to your route.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: You are welcome, thank you for reaching out here. Hope you have a nice day ahead.

USER: Most welcome.