You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Alexander Robinson.

ASSISTANT: How can I aid you?

USER: As there is live concert of my favourite pop singer in Houston, IAH. Will you help me in booking me a flight from Boston,BOS to HOU?

ASSISTANT: Sure.

USER: Ok.

ASSISTANT: Can I know your travelling dates?

USER: 09/21 - 09/23 are my willing dates to travel.

ASSISTANT: Do you need any  connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Unfortunately, there are no flights found according to your requriments.

USER: Ok, I will choose other airline. Thank you.

ASSISTANT: Thank you for consulting us.