You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you today?

USER: Please help me out in booking the ticket from HOU to BOS.

ASSISTANT: Sure, I am here to help you with it. Can you please tell, when are you planning to travel?

USER: My trip dates will be Feb 5 to Feb 7.

ASSISTANT: Which class would you prefer to travel?

USER: I will prefer economy class.

ASSISTANT: Sure, are you looking for any specific airline?

USER: Yes, I am looking for branded airline like UA.

ASSISTANT: Sure, are you flexible to depart and return any time?

USER: I am comfortable with any time.

ASSISTANT: May I know your name to proceed further?

USER: Emily Anderson is my name.

ASSISTANT: We don't have any branded airlines running between airports given by you.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.