You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Sarah Jones, can you help me in booking a flight?

ASSISTANT: Sure, I can help you with that. Can you please provide the airport codes?

USER: My location codes are IAH and PHX.

ASSISTANT: Sarah, can you please help me with your travelling dates?

USER: My travelling dates are 07/13 and 07/15.

ASSISTANT: Ok, let me check for the availability of flight.

USER: 200 and 1 are my price and connections limits. Sure.

ASSISTANT: Ok. Sarah, I am sorry to inform you that there is no flight available at your requested dates.

USER: Ok, that's fine. Thank you for your support.

ASSISTANT: You are welcome. Thank you for contacting us.