You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hi.  How can I help you?

USER: I am planning to meet my childhood friend located in Houston, so please check a flight ticket from IAD to MCO.

ASSISTANT: Okay.  What name will this flight be under?

USER: I would like to book this ticket under name Joseph Nelson.

ASSISTANT: What days do you intend to travel, Mr. Nelson?

USER: I want to start my trip on 01/29 and ends on 01/31.

ASSISTANT: Okay.  Give me one moment to see if we have any flights available.

USER: Ok, take your time.

ASSISTANT: I'm sorry sir, but it seems that there are no flights that match your request.  Is there anything else I can help you with today?

USER: It's ok, thank you for searching for the flight.

ASSISTANT: Your welcome.  Have a nice day.