You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Nicholas Scott here.

ASSISTANT: Nice to meet Nicholas Scott.

USER: I need to reserve a ticket from CLT to HOU, can you help me?

ASSISTANT: Sure, I am here to help you for this. When you are willing to leave?

USER: My journey dates are 06/10 to 06/12.

ASSISTANT: Do you have any airline preference?

USER: Please make sure that my return time should be morning.

ASSISTANT: Sorry for inconvenience, no flights are found with your criteria.

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

ASSISTANT: Thank you very much for contacting our agency.