You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I am Jason Young here, I want to reserve my ticket from PHX to HOU, can you please help me?

ASSISTANT: Sure, may I know your trip dates?

USER: Sure, my preferable dates of travel are from 11/29 to 12/01.

ASSISTANT: Sorry, we could not find any flights available on your travel dates.

USER: Ok, not an issue. I will try with the another booking agency. Anyways, thank you for your service.

ASSISTANT: Thank you for oping us.