You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I want to attend my client's marriage at New York, could you book my ticket from New York?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: My trip dates are 01/10 and 01/12.

ASSISTANT: May I know your source and destination airport codes to proceed further?

USER: My origin and destination airport codes are JFK and IAH.

ASSISTANT: May I know your name please?

USER: My name is Deborah Collins.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: It's ok, thank you for checking.

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