You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: As I am a sports player I am visiting to a sports event at Seattle. Can you help me with booking?

ASSISTANT: Sure, may I know your travelling dates?

USER: My trip dates are 07/21 to 07/23.

ASSISTANT: Can I know your journey codes?

USER: My journey starts from MA-BOS to WA-SEA.

ASSISTANT: Let me know your good name please.

USER: I am Betty Green.

ASSISTANT: Thank you for sharing your details. Unfortunately there is no flight found with your requirements.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for availing us.