You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Elizabeth Davis. I want to reserve my ticket from PHX to HOU. Can you please help me with booking?

ASSISTANT: Yes, I can help you. Can you tell me your travelling dates?

USER: Ok, I would like to go on 03/29 and return on 03/31.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.