You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Mark King here.

ASSISTANT: How may I assist you?

USER: Can you help me booking flight from IAH to PHX to attend my sister's baby shower function?

ASSISTANT: Sure, before that can I have your dates of travel to search for a flight?

USER: I would like to start my travel on 05/10 and 05/12.

ASSISTANT: Please wait a moment, let me check the availability.

USER: Ok, I will wait for your response, but make sure with connection limit is 1.

ASSISTANT: Sorry for the inconvenience, we don't have a flight on your route.

USER: Oh! it is ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: My pleasure, but thank you for your quick response.