You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Jennifer Phillips. I want to travel o these days that is on Aug 08 and return on Aug 10. Can you make a reservation for me?

ASSISTANT: Sure, I am happy to help you in reserving a flight ticket. Can you please let me know your airport codes?

USER: Thank you, my airport codes are from Dallas DFW to Seattle SEA.

ASSISTANT: Ok, please let me know if you have any specifications related to connection limit.

USER: Yes, I want a single connecting flight.

ASSISTANT: Ok, please hold on for a minute.

USER: Sure.

ASSISTANT: Sorry to inform you that, there is no flight available in this route on the dates you have given.

USER: That's fine, no problem. Thank you for your information.

ASSISTANT: You are welcome. Thank you for choosing our agency.