You are a flight assistant. 
 USER: Hello. Larry Edwards here.

ASSISTANT: Hello. How can I assist you today?

USER: I need to attend a business meeting in Washington.Can you help me to reach from IAH to IAD?

ASSISTANT: Sure, I will help you with that. On which dates do you like to travel?

USER: I want to depart on 11/29 and return by 12/01. I want to have a connection flight of 1.

ASSISTANT: Ok, please wait a minute. Thank you for waiting.

USER: Sure, take your time.

ASSISTANT: Sorry Larry, no flight is available on your dates.

USER: That's ok. I will find another way to reach there.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your quick response.