You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Timothy Robinson. I want to book a flight ticket to meet my uncle in Houston, could you help me in booking a flight ticket?

ASSISTANT: Sure, could you please share your journey dates?

USER: My departure is 11/05 and return on 11/07.

ASSISTANT: Let me know your travelling airport codes?

USER: My source is NV - LAS and destination is TX - HOU.

ASSISTANT: May I know your price limit?

USER: I can afford up to 5000.

ASSISTANT: Sorry, there is no flight is available as per your requests.

USER: Not an issue.

ASSISTANT: Thank you for choosing us, have a nice day.

USER: Thank you for your information.