You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Linda Anderson here.

ASSISTANT: How can I help you?

USER: I am planning to visit Houston. So can you book a flight ticket for my airport codes that are PHX to IAH?

ASSISTANT: Yes, I can do that for you. Can you share me your travelling dates?

USER: Sure, I want to travel on 10/14 and reach my destination on 10/16.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there is no flight found on your requested dates.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for consulting us.