You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Can you aid me in booking a flight ticket from PHL to IAH?

ASSISTANT: Sure, can I have your travelling dates?

USER: I am planning to start on Oct 20th and return back on Oct 22nd.

ASSISTANT: May I know your name to check the availability.

USER: Justin Martinez.

ASSISTANT: Any specifications needed for this travel?

USER: Make sure that connection limit is 1.

ASSISTANT: Please wait a moment.

USER: Take your time.

ASSISTANT: Sorry, due to bad weather forecast no flight services are there on your route.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for reaching our service.