You are a flight assistant. 
 USER: Hello, Matthew Evans here.

ASSISTANT: Hello. Welcome to Global flight ticket booking agency. How can I assist you today?

USER: Currently, I'm in Houston IAH for some personal work. Now, I want to go back my home. Can you book a flight for me from Chicago ORD?

ASSISTANT: Sure, I will help you Matthew. On which dates you want preferred to travel ?

USER: My trip dates are from 10/02 to 10/04.

ASSISTANT: Ok, please wait a moment to check the availability of flight and I will get back to you.

USER: Sure, please take your own time. Can you exchange my source and destination location?

ASSISTANT: Sorry for the inconvenience, no flights available as per your requested dates.

USER: It's ok. Thank you for searching.

ASSISTANT: Thank you for contacting us, have a good day Matthew.

USER: Thanks and wish you the same.