You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: I am Angela Martinez, can you help me to book a flight with 1 connection?

ASSISTANT: Sure, I will help you. Can I know your travelling dates?

USER: My travelling dates are 06/30 and 07/02.

ASSISTANT: Ok, may I know your airport codes?

USER: My preferable airport codes are BOS and IAH.

ASSISTANT: Sorry to say that, there are no flight available based on your traveling dates.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thank you for approaching us.