You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Betty Allen.

ASSISTANT: How can I help you?

USER: Can you please help me in booking a flight ticket from DCA to JFK?

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

USER: Thank you. I want to travel on Jan 23rd and return on Jan 25th.

ASSISTANT: Ok, do you need any halt in between the journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Please share your other preferences.

USER: I do not have any other preferences.

ASSISTANT: Wait a minute please.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry we didn't find any flights with your details.

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

ASSISTANT: Thank you for reaching us, have a good day.