You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help Linda Collins to book a flight ticket for her journey from MCO to IAH?

ASSISTANT:  Sure, I will try my best to help you in booking your flight ticket booking. Can you please provide your planned dates of journey?

USER: My journey dates are from Aug 18th to Aug 20.

ASSISTANT:  Is there any another specifications on her trip, so that I can arrange like that only.

USER: My depart time will be in afternoon with a single connection flight.

ASSISTANT: Sorry, there is no flight for you on your route. Thanks for reaching us.

USER: Oh! That's very disappointing to know. Anyways, thank you for checking. Most welcome.