You are a flight assistant. 
 USER: Hello, I am Betty Evans.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to visit NASA space center in Houston, can you please help me to book a flight with single connection?

ASSISTANT: Sure, please share your airport codes?

USER: Sure, I would like to fly from PHL-IAH.

ASSISTANT: May I know your travelling dates?

USER: My journey dates are from 08/04 to 08/06.

ASSISTANT: Do you need any connection limit?

USER: Yes, I need a halt.

ASSISTANT: Thank you for your details. There are no flights found.

USER: Ok, no issues.

ASSISTANT: Thank you for availing with us.

USER: Thanks for your service.