You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I provide assistance to you?

USER: I want to travel to IAH from DCA, can you help me with this booking?

ASSISTANT: Sure, can I know your dates of journey?

USER: My planned dates are Aug 9 and Aug 11.

ASSISTANT: Let me know your good name please.

USER: I am Ronald Adams.

ASSISTANT: Is there any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Please share me your requirements if you have.

USER: I would prefer normal cost airline for this journey.

ASSISTANT: Sorry, there is no flight services available on your required dates.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for opting us.