You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I would like to travel from JFK to IAH, can you help me with that?

ASSISTANT: Sure, I am here to help you. Can I know on which dates you want to travel?

USER: My trip dates are 05/03 and 05/05.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any other specification?

USER: I prefer economy class.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: That's ok. No issues.

ASSISTANT: May I know your name?

USER: I am Christine Smith.

ASSISTANT: Thank you.

USER: Thank you for your service.