You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you?

USER: Debra Thomas here. Can you make my reservation from BOS to DCA?

ASSISTANT: Can I know your preferable dates?

USER: My travelling dates are from 07/24 to 07/29. Please check with 1 connection.

ASSISTANT: I am sorry, there are no flights with 1 connection.

USER: It's ok. Anyway, thank you. Thanks.

ASSISTANT: Thank you, have a good day.