You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Susan Thompson, I want to reserve my ticket from SFO to IAH. Can you help me in booking?

ASSISTANT: Sure, can I know your trip dates?

USER: My respective travelling dates are 04/22 and 04/24.

ASSISTANT: Do you have any specifications?

USER: Please make sure, that the price limit should be 200 with connecting flight.

ASSISTANT: Sorry, there is no flight on your requested dates.

USER: That's ok, no problem. Thank you for searching.

ASSISTANT: Thank you for opting us.